Other mistake: Maureen cuts her wrists with a razor blade. Days later, no bandages or scars.
Psycho III (1986)
Plot summary
Directed by: Anthony Perkins
Starring: Anthony Perkins, Diana Scarwid, Jeff Fahey, Roberta Maxwell
Norman Bates (Perkins)is still running the Bates motel, and he has kept the dressed skeleton he calls mother. One of his guests is a young girl (Scarwid) who has left the convent where she lived. To get some help he employs a young man. One day a nosey journalist comes to see him to ask questions about his past.
More mistakes in Psycho III
Ralph Statler: Emma Spool just doesn't show up for work one day. I just hope nothing serious happened to the old girl.
Tracy Venable: You mean like Norman Bates?
Sheriff Hunt: What about him? Are you another relative of somebody he killed?
Trivia: Diana Scarwid ab-libbed the famous opening line, "There is no God!".