Top Sci-Fi Monsters & Aliens to Stream on HBO Max Now

44 titles

Default order ↑Popularity IMDb rating TMDB rating Release date Runtime Title Budget Box office

1 Terror of MechagodzillaMovie · 1975 · 83m · Science Fiction, Action, DramaA team of submarine explorers undertakes a risky mission to recover the wreckage of Mechagodzilla. Their operation takes an unexpected turn when they encounter Titanosaurus, a massive prehistoric creature dwelling in the deep ocean. Interpol investigates the strange clashes between these titans, while biologist Ichinose discovers a surprising link to Dr. Mafune and his daughter Katsura. Katsura's fate becomes tied to the revival of the mechanical monster as she aligns herself with enigmatic Black Hole Aliens. This exciting story explores the connections between science, nature, and alien powers, all within the stunning environment of the deep sea.Stream on IMDb 6.1TMDB 6.8
2 Godzilla vs. GiganMovie · 1972 · 89m · Action, Adventure, Science FictionGengo Odaka, a skilled manga artist, starts a job at World Children's Land amusement park and becomes involved in a puzzling mystery. While working there, Gengo discovers a strange message on some tapes, leading him to believe that hidden secrets exist within the cheerful park. He assembles a team to investigate, delving into the park’s concealed areas. At the same time, Godzilla and Anguirus, the famous monsters, manage to understand the coded message and decide to intervene. The story is a suspenseful mix of mystery, where reality and fiction become unclear, and the distinction between good and bad is uncertain. With compelling characters, skillful storytelling, and impressive visuals, the film explores themes of truth, trust, and loyalty when facing unforeseen threats.Stream on IMDb 5.6TMDB 6.4
3 The BroodMovie · 1979 · 92m · Horror, Science FictionA psychological thriller exploring troubled relationships and questionable therapy. A man investigates the methods of an unusual psychologist treating his wife in the hospital. As he delves into this unconventional therapy, a series of disturbing attacks plague the city, seemingly committed by mutant children. This unsettling parallel to the husband's investigation blurs the line between sanity and madness. The film examines obsession, guilt, and the dangerous consequences of medical professionals exceeding professional boundaries in search of a cure.Stream on IMDb 6.8TMDB 6.7
4 RodanMovie · 1956 · 72m · Horror, Science FictionIn a Japanese mining region plagued by mysterious miner disappearances and deaths, experienced engineer Shigeru is compelled to investigate. The discovery of prehistoric nymphs complicates the situation with added danger. Witnessing an attack on a village, Shigeru ventures deeper into the mines seeking answers. He encounters a terrifying winged prehistoric creature, a monster seemingly displaced from time. The arrival of another monstrous being escalates the peril, culminating in a tense confrontation in Fukuoka. The story explores survival, fear, and human resilience as prehistoric creatures clash with unsuspecting people.Stream on IMDb 6.2TMDB 6.5
5 The BlobMovie · 1958 · 82m · Horror, Science FictionA nostalgic sci-fi thriller about teenagers Steve and Jane who discover a strange, shapeless alien that consumes everything. The creature grows larger as it feeds, threatening their peaceful town. When authorities dismiss their warnings, Steve and Jane must quickly gather proof and unite their community to fight back against the growing danger. It's a suspenseful story about courage, friendship, and community spirit when facing an unbelievable threat.Stream on IMDb 6.3TMDB 6.2
6 Ghidorah, the Three-Headed MonsterMovie · 1964 · 92m · Science Fiction, Action, FantasyA thrilling monster movie sees humanity threatened when a meteorite crashes into Tokyo, unleashing a powerful three-headed beast that causes destruction. As chaos spreads, Mothra, a benevolent mythical creature, teams up with Godzilla and Rodan, two other Earth defenders, to protect their home from this alien terror. United by their goal, the trio battles the monster, pushing their abilities to the limit and forming a bond as they fight to save humanity and restore peace to Tokyo.Stream on IMDb 6.5TMDB 7.0
7 Invasion of Astro-MonsterMovie · 1965 · 96m · Science Fiction, ActionAstronauts Glenn and Fuji journey to Planet X, an unexplored world with profound mysteries. They encounter the Xiliens, an alien race pleading for Earth's assistance in saving their planet from a devastating force called "Monster Zero." The Xiliens offer a surprising deal: they will give humanity a cancer cure in exchange for Godzilla and Rodan. As Glenn investigates this alliance, he develops a relationship with Miss Namikawa while uncovering hidden motives behind the Xiliens’ offer. This story of space exploration and diplomacy takes an unexpected turn as Glenn navigates alien politics and the risks of his discoveries, all while facing love amidst great danger.Stream on IMDb 6.2TMDB 6.8
8 Son of GodzillaMovie · 1967 · 86m · Adventure, Family, Science FictionReporter Goro Maki discovers a hidden research facility on Sollgel Island in the South Seas where scientists are experimenting with weather manipulation. His investigation changes when he meets Saeko, a castaway, and learns the island is inhabited by giant mantises. Together, they find an abandoned infant monster – left there by Godzilla. To ensure its survival, Goro and Saeko must help Godzilla learn to care for the creature, navigating the complexities of raising a child under extraordinary circumstances.Stream on IMDb 5.2TMDB 6.4
9 Destroy All MonstersMovie · 1968 · 89m · Science Fiction, ActionEarly in the 21st century, humans successfully contained Earth's monstrous creatures in a separate realm called Monsterland. This fragile peace is broken when the Kilaaks, a malevolent race of female aliens, plot to release the monsters back into the world. As chaos erupts and cities face destruction, a diverse group of heroes must unite to stop the alien invasion and restore order, preventing humanity from being overwhelmed by both extraterrestrial and monstrous threats. This exciting story highlights the importance of unity, courage, and perseverance when facing overwhelming odds.Stream on IMDb 6.4TMDB 6.9
10 The War of the GargantuasMovie · 1966 · 88m · Action, Horror, Science FictionA monstrous sea creature named Gaira, assembled from unnatural parts, emerges from the ocean and attacks Tokyo, causing widespread destruction and panic. The Japanese military prepares to fight back. At the same time, Gaira's enormous brother, Sanda, arrives to defend him. The story becomes a dramatic conflict between these two brothers, one seemingly destructive and the other protective, culminating in a devastating battle that leaves Tokyo in ruins.Stream on IMDb 6.1TMDB 6.4
11 Godzilla vs. HedorahMovie · 1971 · 85m · Science Fiction, Action, HorrorAs environmental pollution spirals out of control, an unusual alien life form arrives from the Dark Gaseous Nebula on a comet. This being possesses the ability to absorb pollution, but its presence unleashes dangerous sulfuric acid mists and corrosive sludge, threatening Earth. This science fiction thriller follows humanity's desperate fight against this extraterrestrial threat, pushing the boundaries of science and technology. The film presents a stark, realistic portrayal of humankind’s struggle against an adversary powerful enough to challenge even the likes of Godzilla. It explores humanity's responsibility for the environment and the potential repercussions of our actions on the planet and its inhabitants.Stream on IMDb 6.1TMDB 6.8
12 Fantastic PlanetMovie · 1973 · 72m · Animation, Science FictionOn the planet Ygam, two species coexist in a world of inequality: the spiritually advanced Draags, who see the human-like Oms as inferior beings to be used for amusement, and the Oms, struggling to survive. Some Oms seek refuge in the planet's wilderness, but face deadly, organized hunts. The film explores themes of prejudice and power, set against the backdrop of a strange, new world.Stream on IMDb 7.6TMDB 7.6
13 Ebirah, Horror of the DeepMovie · 1966 · 87m · Science Fiction, Action, FantasyRyota journeys to find his missing brother, joining two other young people on a voyage aboard a boat owned by a mysterious criminal. Disaster strikes, forcing them to the shores of Letchi Island, where they discover the island's inhabitants are enslaved by a terrorist group controlling a giant crustacean monster. With hope dwindling, Ryota and his friends awaken a sleeping giant – Godzilla – and team up with him to fight the terrorists for freedom. The island's people depend on these young heroes to defeat the evil and bring peace back to Letchi Island. This story explores courage, teamwork, and personal growth as the heroes face overwhelming challenges in a world dominated by fear.Stream on IMDb 5.6TMDB 6.3
14 Godzilla vs. MechagodzillaMovie · 1974 · 84m · Action, Adventure, Science FictionAn old Okinawan prophecy foretells Earth's destruction, and it appears to be happening as Godzilla returns to its destructive ways. But when Anguirus is found injured, it suggests something is wrong. The story takes a surprising turn with the arrival of a second Godzilla. This reveals that the original Godzilla is actually a mechanical weapon, forcing humanity to confront the implications of a dangerous scheme.Stream on IMDb 6.2TMDB 7.0
15 SupermanMovie · 1978 · 144m · Science Fiction, Action, AdventureThis is the story of Clark Kent, a journalist at the Daily Planet who secretly lives a double life as the superhero Superman. He tries to balance his work and his feelings for Lois Lane while protecting the city from danger. When Lex Luthor, a powerful businessman, plans to take over the world, Superman must stop him from causing global disaster. Facing increasing danger and with time running out, Superman confronts his biggest challenge yet, all while dealing with the difficulties of relationships and the possibility of love.Stream on IMDb 7.4TMDB 7.2
16 A Trip to the MoonMovie · 1902 · 15m · Adventure, Science Fiction, FantasyProfessor Barbenfouillis leads six astronomers on a pioneering mission to the moon. They travel beyond Earth's orbit in a rocket launched from a giant cannon, and successfully land. Exploring the moon's caves, the team faces unforeseen dangers and must use their intelligence and skills to overcome them. The film is a story of scientific curiosity, teamwork, and determination as they explore this new world and expand human knowledge.Stream on IMDb 8.1TMDB 7.9
17 The Impossible VoyageMovie · 1904 · 20m · Adventure, Comedy, FantasyA team of explorers from the Geographic Society undertakes an ambitious journey to conquer different forms of transportation and reach the Sun via the Alps. Their quest takes an unexpected turn when they discover their destination lies not above, but beneath the surface. Undeterred, they descend into the ocean depths, culminating in a profound underwater encounter that transforms them. The film explores human ingenuity, perseverance, friendship, and the drive to uncover the world's mysteries as these explorers pursue the seemingly impossible, traversing mountains and oceans.Stream onIMDb 7.4TMDB 7.2
18 Godzilla Raids AgainMovie · 1955 · 82m · Science Fiction, Horror, ActionTwo pilots on a scouting mission encounter a terrifying spectacle: Godzilla and Anguirus battling across Japan. With the weapon that defeated Godzilla before missing, authorities race to find a way to defend the country from these giant monsters as they head towards Osaka. The nation prepares for a devastating event that could change everything. This story is about survival, hope, and how people persevere when facing impossible challenges.Stream on IMDb 5.7TMDB 6.0
19 Watchmen: Chapter IIMovie · 2024 · 89m · Animation, Mystery, Science FictionWhen strange things happen to people they used to work with, Nite Owl and Silk Spectre are pulled back into action to find out what's going on. They face difficult choices about what's right, struggle with their own problems, and find themselves fighting a public that distrusts them. They must hurry to stop a growing conspiracy that could lead to nuclear war.Stream on IMDb 7.1TMDB 7.4
20 Mickey 17Movie · 2025 · 137m · Science Fiction, Comedy, AdventureMickey Barnes takes a job with a peculiar employer who requires absolute dedication: to die, as part of the work.Stream on IMDb 6.7TMDB 6.8
21 The Day the Earth Blew Up: A Looney Tunes MovieMovie · 2024 · 91m · Family, Comedy, AdventurePorky and Daffy, the famous animated duo, become heroes when their mischief at a bubble gum factory reveals a secret alien plan to control people's minds. They must work together to save their town—and the world—even if they constantly annoy each other.Stream on IMDb 6.7TMDB 7.6
22 CompanionMovie · 2025 · 97m · Horror, Science Fiction, ThrillerA group of friends on a weekend trip to a remote lakeside estate discovers a complicated network of secrets, lies, and sophisticated technology. Their relationships are strained as they begin to learn disturbing things about each other and the reality they thought they knew.Stream on IMDb 6.9TMDB 7.0
23 2073Movie · 2024 · 83m · Thriller, Science FictionInspired by Chris Marker's 1962 film *La Jetée*, the year is 2073. In a near-future dystopia, New San Francisco is a desolate, technologically controlled police state where democracy and individual freedom have been completely suppressed.Stream on IMDb 5.1TMDB 6.7
24 Superman IIIMovie · 1983 · 125m · Comedy, Science Fiction, ActionIn this 1980s Superman adventure, the hero confronts new threats when wealthy executive Ross Webster hires the inventive but unpredictable Gus Gorman to build artificial kryptonite. Gorman's creation unexpectedly causes psychological problems, increasing the danger Superman must face. While Superman navigates a rekindled romance with his high school sweetheart and protects Earth from Webster’s plans, he battles a powerful supercomputer. The film combines action, science fiction, and suspense, exploring the hero’s personal life as well as delivering an exciting adventure.Stream on IMDb 5.0TMDB 5.5
25 PromareMovie · 2019 · 111m · Animation, Action, Science FictionThe Galo and the Burning Rescue Fire Department confronts BURNISH, a group of mutants with the power to control fire, who have triggered a global fire disaster.Stream on IMDb 7.0TMDB 7.1
26 Frequently Asked Questions About Time TravelMovie · 2009 · 83m · Comedy, Drama, RomanceThree socially awkward individuals – two with a passion for technology and one with a pessimistic outlook – find themselves caught in a time-travel situation while gathered in a British pub.Stream on IMDb 6.9TMDB 6.9
27 Justice League: DoomMovie · 2012 · 77m · Action, Animation, Science FictionThis film adapts Mark Waid's "Tower of Babel" story from the JLA comic. Vandal Savage obtains confidential files Batman has gathered on the Justice League, learning the heroes' individual vulnerabilities.Stream on IMDb 7.4TMDB 7.4
28 Superman: Red SonMovie · 2020 · 84m · Science Fiction, Animation, ActionDuring the Cold War, Red Son tells the story of a Superman who lands in the Soviet Union in the 1950s. He grows up to become a symbol of the USSR, fighting to uphold Stalin's version of communism.IMDb 6.4TMDB 7.1
29 Superman: Man of TomorrowMovie · 2020 · 87m · Animation, Action, Science FictionA new era of heroes begins in Metropolis with the arrival of its first. Daily Planet intern Clark Kent, working with reporter Lois Lane, secretly uses his extraordinary abilities – flight, super-strength, and x-ray vision – to fight for what's right. But even greater challenges are coming.Stream on IMDb 6.5TMDB 7.1
30 Fahrenheit 451Movie · 2018 · 100m · Drama, Science Fiction, ThrillerIn a bleak future society, a fireman tasked with burning all books starts to doubt his role.Stream on IMDb 5.0TMDB 5.4
31 MorganMovie · 2016 · 92m · Horror, Science Fiction, ThrillerA risk management consultant for a corporation is faced with a difficult decision: whether to end the life of an artificial being created in a lab.Stream on IMDb 5.9TMDB 5.8
32 ElevationMovie · 2024 · 91m · Action, Science Fiction, ThrillerAfter a devastating event, a group of survivors takes shelter in the Rocky Mountains, a region inaccessible to massive, insectoid creatures. Their fragile sanctuary is threatened when a member falls critically ill and requires supplies found below 8,000 feet, forcing them to brave the creatures' territory for essential resources.Stream on IMDb 5.7TMDB 6.5
33 Superman IIMovie · 1980 · 127m · Science Fiction, Action, AdventureGeneral Zod and two Kryptonian criminals flee to Earth with plans to take over the planet, partnering with Lex Luthor. They seize control of the White House and scheme to eliminate Superman. Meanwhile, Superman struggles with his identity, trying to live as a human to be with Lois Lane. But when he discovers Earth is in danger, he must prioritize saving the planet and defeat the invaders, using his powers to restore peace.Stream on IMDb 6.8TMDB 6.7
34 Superman/Batman: Public EnemiesMovie · 2009 · 67m · Science Fiction, Animation, AdventurePresident Lex Luthor exploits an incoming Kryptonite meteor to falsely accuse Superman and offers a $1 billion reward for their capture. This sparks a widespread hunt for Superman and Batman, who are forced to team up and seek allies to survive the relentless pursuit and prevent Luthor's scheme involving the meteor.Stream on IMDb 7.1TMDB 7.1
35 The TerminatorMovie · 1984 · 108m · Action, Thriller, Science FictionIn this sci-fi thriller set in a future dominated by intelligent computers that foresee humanity's downfall, the story moves to 1984. The central conflict involves a cyborg assassin, the "Terminator," sent from the future to eliminate Sarah Connor. The machines believe her unborn son will be key to the resistance against their rule. To protect Sarah and change the future, the human resistance sends a warrior on a dangerous mission. He must stop the Terminator, navigating difficult situations and using all his abilities in a desperate chase. Can he defeat the relentless assassin, save Sarah Connor, and alter humanity's fate? The future of survival hangs in the balance.Stream on IMDb 8.1TMDB 7.7
36 Red DawnMovie · 1984 · 114m · Action, Thriller, WarWhen global conflict erupts into World War III, a group of resourceful teenagers in the American heartland must step up. As the nation battles its former ally, these young people unite to protect their community from advancing Soviet forces. The story follows them as they navigate a war-torn America, building alliances and developing skills to defend their town and, potentially, the future of the country. It’s a tale of unity, courage, and determination in the face of overwhelming danger.Stream on IMDb 6.4TMDB 6.3
37 The Return of GodzillaMovie · 1984 · 103m · Science Fiction, Action, ThrillerA fishing crew's normal voyage turns terrifying when they encounter Godzilla, awakened from the ocean depths. The sole survivor must uncover the truth of the attack and share it with the world. Meanwhile, the Japanese government tries to hide the situation, caught between the United States and the Soviet Union, both wanting to destroy Godzilla with nuclear weapons. The survivor races against time to prove Godzilla's existence and navigate dangerous international politics, all while facing a threat to his country and the planet.Stream on IMDb 6.8TMDB 7.2
38 Godzilla vs. BiollanteMovie · 1989 · 105m · Action, Horror, FantasyFollowing a catastrophic Godzilla attack, countries race to obtain samples of the monster to develop weapons for future defense. Japan takes the lead, hiring geneticist Genshiro Shiragami to create ANEB, a new bio-weapon. As Shiragami’s research pushes boundaries, his work accidentally triggers a mutation that could dramatically change humanity's relationship with Godzilla. This story examines scientific ambition, political maneuvering, and the risks of interfering with powerful natural forces.Stream on IMDb 6.5TMDB 7.4
39 Godzilla vs. King GhidorahMovie · 1991 · 103m · Action, Adventure, Science FictionIn a future where time travel exists, a team called The Futurians travels to ancient Japan with a critical warning. They tell the Japanese people about the destruction Godzilla will bring. To prevent this, the Futurians offer to help eliminate Godzilla by stopping him before he appears. But after they succeed in erasing Godzilla from history, a darker plan is revealed. It turns out the Futurians intended not just to save Japan, but to create a new threat. The film blends suspense, drama, and action to explore time manipulation, hidden motives, and the effects of changing the past. The story takes viewers on a thrilling journey, questioning whether it's right to alter destiny.Stream on IMDb 6.5TMDB 6.9
40 Mom and Dad Save the WorldMovie · 1992 · 88m · Adventure, Comedy, FamilyMarge Nelson and her husband Dick are kidnapped by the inept Emperor Spengo, who wants to marry Marge and then destroy Earth. Dick, inspired by Flash Gordon and Buck Rogers, must find the hero within himself to rescue Marge and stop Spengo's disastrous plan. He journeys through Spengo's chaotic space forces, using wit and humor to overcome obstacles and save the planet in a wild adventure filled with unexpected characters and twists.Stream on IMDb 5.4TMDB 4.8
41 Open Your EyesMovie · 1997 · 117m · Drama, Thriller, Science FictionThis is a moving story about a handsome man who unexpectedly finds love. His life changes dramatically when a serious accident leaves him with severe facial disfigurement. He then undertakes a challenging journey to rebuild his appearance and regain his self-esteem, grappling with how his changed looks affect himself and those he cares about. The film explores the complexities of beauty, love, and identity, prompting viewers to consider societal views on physical attractiveness and the strength of human relationships when facing hardship.Stream on IMDb 7.7TMDB 7.4
42 ScannersMovie · 1981 · 103m · Science Fiction, HorrorThe film centers on a person with exceptional telepathic abilities who is captured by agents working for a secret corporation. While held, he discovers he isn't the only one with these unusual powers. Some people with similar abilities aim to control the world, while others try to stop them. The story is a suspenseful exploration of power and difficult choices as the main character tries to understand and gain control within a complex network of minds and intentions.Stream on IMDb 6.7TMDB 6.7
43 SpaceballsMovie · 1987 · 96m · Comedy, Science FictionIn this fun sci-fi adventure, the villainous Dark Helmet plots to kidnap Princess Vespa and control her planet’s air. Space adventurer Lone Starr is asked to save the day, partnering with his clumsy friend. During their comical journey, they meet Yogurt, a quirky character who teaches Lone Starr about the power of "The Schwartz." With time running short and Dark Helmet's evil plan nearing completion, Lone Starr must use this ancient power to face unexpected obstacles and rescue Princess Vespa, saving her planet from destruction.Stream on IMDb 7.1TMDB 6.9
44 Invasion of the Body SnatchersMovie · 1978 · 116m · Science Fiction, HorrorIn San Francisco, a disturbing change is affecting the city's residents. People are becoming increasingly disconnected, acting like empty shells of themselves. As this strange phenomenon spreads, two health workers discover the frightening truth behind the shift in behavior. Their investigation reveals a dangerous plot exposing the alarming impact of technology on human lives and connections. The film blends suspense, horror, and social commentary to create a gripping experience. Racing against time to stop this sinister development, the protagonists must confront their own fears about humanity's relationship with technology.Stream on IMDb 7.4TMDB 7.2