When the kids first saw this one they thought it was too slow to be watchable. They've made fun of it ever since.
The New York Times calls it "a Western drama that is the best of its kind in several years". Roger Ebert says it's "not a very good film". Images Journal says, "This conflict between personal responsibility and the needs of the community is where High Noon excels. It's what makes it a great movie". FilmReference.com opens with this:
High Noon was responsible for setting the career of Gary Cooper moving again and is considered by many the single most important film in his career. However, no one knew or thought the film was destined for big things when it was first conceived.