Billy Madison (1995)

Continuity mistake: When Billy is in first grade, Miss Lippy sits all the kids down in a circle for story time. One little girl goes up to Billy and says, "You have a mis-shaped head.", while she stands in front of Billy. In the very next shot, you see her stepping over Billy's leg to sit in front of him. (00:18:50)

Billy Madison: He's going to shit when he realises it's shit!

Trivia: The pool that Billy appears in is of the exact same set of pools Navin R. Johnson [Steve Martin] used in The Jerk.