Poltergeist (1982)
The movie itself is scary from the start until the end. It is already an iconic horror film as its chilling effect transcends generation. The clown in this film was a clown doll creeping under the bed. You can only imagine how scary the movie is. It reached a point when children were reported to have destroyed their clown dolls at home. Also, according to the movie, clown dolls are roaming around hell regularly. Aside from burning in hell, this is another reason for you to be good.