Audio problem: In the scene after Norman goes for a late-night swim, when he's telling Maureen that he slipped in the mud, you can see that his mouth never moves, yet he speaks the words "I slipped in the mud."
Psycho III (1986)
1 audio problem
Directed by: Anthony Perkins
Starring: Anthony Perkins, Diana Scarwid, Jeff Fahey, Roberta Maxwell
Revealing mistake: When Norman drives Dukes car into the pond, it's obvious no one is in it.
Norman Bates: Conservative clothes never go out of style.
Trivia: Diana Scarwid ab-libbed the famous opening line, "There is no God!".