The contract included a specific clause requiring investigation of any organized signal suggesting possible intelligent life... Alien was directed by Ridley Scott and written by Ronald Shusett and Dan O'Bannon. The film features Tom Skerritt, Sigourney Weaver, Veronica Cartwright, John Hurt, Yaphet Kotto, Ian Holm, and Harry Dean Stanton. Jerry Goldsmith composed the music, and Derek Vanlint handled the cinematography. The space merchant vessel Nostromo intercepts an unidentified transmission as a distress call and lands on the moon from which it originated. That turned out to be a mistake... When it was first released, Alien became one of the most discussed films of 1979, largely thanks to a very intriguing trailer—which itself included what is considered one of cinema’s best taglines. The anticipation surrounding this genre-blending classic was immense. It marked only Ridley Scott's second full-length film; it seemed questionable whether a director’s sophomore effort could truly live up to the hype, but history has since confirmed that it did. The plot follows a familiar structure—the haunted house and killer on the loose have been exchanged for a spaceship in space. However, once the movie introduces its alien threat, and it becomes a struggle for survival confined to one location, you realize there’s no escape. There's nowhere to run outside or hide in an attic hoping the danger passes; the future of humanity rests on these humans succeeding against this threat. Some viewers still criticize Alien as being too slow-paced, but that's actually one of its greatest strengths. Time spent in space is inherently slow and probably lonely, so Scott wisely takes his time introducing the characters, allowing us to understand a bit about their personalities before everything goes wrong (literally). When the tension finally erupts, it’s terrifying—the standard for horror/sci-fi hybrids was raised significantly. With art design by H.R. Giger and Goldsmith's unsettling musical score, the entire film has an uneasy feel, particularly with disturbing sexual undertones and symbolism that lingers in your mind as the body horror unfolds. The quiet moments are incredibly suspenseful; Alien is a visceral experience overall, especially when seen on a large screen in a dark theater. The movie launched Weaver's career—unbeknownst to viewers at the time, she’s actually the main character. That was another brilliant move by Scott, as Ripley, portrayed by Weaver, advanced female characters in big-budget films considerably. The entire cast performs exceptionally well; there are no major stars here, just a group of dedicated British and American actors drawing inspiration from their director for outstanding results. Now 40 years old, Alien doesn’t show any signs of losing its classic status, and it deserves that recognition. It remains a seminal work that still possesses all the qualities it had in 1979. In space, no one can hear you scream—that's absolutely true! 10/10

Source on TMDB