Psycho

Audio problem: When Norman runs down from the Bates house to the motel and meets Marion, he says "Gee, I'm sorry I didn't hear you in all this rain. Go ahead in, please." But you look closely, it looks like Norman is barely moving his lips. In fact it looks like Marion is saying something instead. (00:27:50)

Audio problem: When Norman enters the cellar to kill Lila and is grabbed from behind by Sam, Mother's voice can be heard yelling, "I am Norma Bates." However, this was added in post-production, as his lips are not moving.

harpman

Factual error: When Janet Leigh is shown lying dead on the floor of the shower, there is a close-up of her open eye. The pupil is contracted to a pinpoint (obviously due to the bright lighting) where it should have been dilated. After the film was released, Hitchcock heard from several ophthalmologists who pointed this out and suggested he use belladonna eyedrops in the eyes of "dead" people in future films, as the chemical prevents the pupils from contracting. (00:48:30)

More mistakes in Psycho

Norman Bates: A boy's best friend is his mother.

More quotes from Psycho

Trivia: Although it lasts for only 45 seconds on screen, the stabbing scene in the shower took seven days to shoot and used 70 different camera angles.

More trivia for Psycho

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