Assassination Classroom followed the anime close by, but they did messed up the ending so the story will fit the film.

The story started good, presenting the universe and the characters. The cast is an all star cast, although the main character was much more manly than the one in the anime. However, he did a good job with his acting nevertheless.

The film's plot was good until it reached a point when the story was rushed to finish. That deprived the story of the teacher-students dynamics that the movie needed to explain some of the events that happened.

So, good performances, surprisingly good CGI, nice action scenes, but rushed ending and lack of emotions: six out of ten.