I went in knowing absolutely nothing about the movie. Based on the title alone, I would have assumed it was either a horror film or a crime thriller—that’s what came to mind for me, anyway. It's a misleading name for something aimed at children, especially given Western sensibilities; they even had to rename 'Jack the Giant Killer' to '...Giant Slayer' for similar reasons. But adults don’t really care, and young viewers are primarily concerned with how much action there is. Regardless, it was very well crafted, from the story itself to the characters. This film is an adaptation of a popular manga series carrying the same title, which recently received its own anime adaptation that has been widely praised. Japanese manga and anime continue to demonstrate incredible creativity, especially when compared to the West’s focus on 3D animation and the advancements made by Marvel and DC in motion pictures. It's an alien invasion story, but a truly unique one—perhaps the only one of its kind. The experience feels more like playing a video game than watching a film; it’s essentially about grabbing a gun and having fun killing strange creatures, much like most of the films in the 'Resident Evil' franchise. Directed by the same person behind 'Oppai Valleyball,' the movie centers on students from Class E at a junior high school that has been invaded by an alien intelligence responsible for the disappearance of a significant portion of the moon and who has vowed to destroy Earth by the end of the year. With full backing from the government and armed forces, these students are authorized to eliminate the aliens and claim a substantial reward. Equipped with human-friendly weapons and assassination training, the game is on. > ❝Even though he's a powerful being capable of destroying the world, everyone says he’s quite good at teaching.❞ While the premise might seem straightforward, that's part of what makes it clever. Korosensei—a name given to him by Class E—is incredibly fast and impervious to bullets. You could consider him Japan's version of 'The Flash.' Despite his appearance resembling a smiling emoji with an odd vocalization, his facial expressions change according to the situation, like different emoticons do. The concept translates well from manga and anime to film, and they managed to make it work effectively. The movie runs close to two hours, and they packed it with interesting elements, so I didn’t find the pacing problematic at all. Most of the action takes place within the classroom and its immediate surroundings. The characters are great, too; the story is well developed on multiple levels, making for a thoroughly entertaining product. Even though Korosensei is technically the villain, he's surprisingly likable. His dialogue, his commitment to teaching—it’s easy to overlook his threats, even if they are serious. The stakes involve defending Earth and human pride. This represents the core difference between humans, including Class E, and him. However, it all unfolds within a comedic framework, which is what makes the film so enjoyable. I didn't understand every joke, as some of them rely on Japanese humor that might be lost on outsiders. Nevertheless, it’s still very entertaining. A sequel directed by the same person, called 'The Graduation,' has already been released, but it wasn’t quite as successful as this one. It’s too early to pass judgment until I've seen it myself. I hope to watch it soon. In the meantime, if you haven’t seen this film yet, it is definitely worth checking out. Just don’t expect anything overly elaborate like a typical Western science fiction movie. If you are familiar with Japanese storytelling conventions, you will have a better idea of what to anticipate. Like many manga adaptations brought to the big screen, I am very grateful for it because I've been unlucky enough not to be able to read the original mangas. I’m not much of a reader, but I do enjoy films, so this format works well for me and I'm enjoying it. _7/10_

Source on TMDB