Trivia: Though Psycho is a Paramount Picture, it was filmed at Universal Studios.

Trivia: The security guard who gives "mother" a blanket at the end of the movie has the door opened for him by a young Ted Knight.

Trivia: Psycho was made with a budget of under $1,000,000.

Trivia: When Detective Arbogast gets attacked by Norman's mother and falls backwards down the stairs, the actor, Martin Balsam, was actually just tap-dancing in front of a blue/green screen.

Trivia: A body-double was used in the shower scene when anything else besides Janet Leigh's face, neck, shoulders, and arms are seen on screen.

Trivia: That freaky, shrill score of Psycho, created by Bernard Herrmann, inspired a well-known music producer to help create a popular song for a famous band. George Martin cites Bernard's score as an influence for 'Eleanor Rigby' by the greatest and most romantic band ever, the Beatles.

Allister Cooper, 2011

Trivia: Director Hitchcock hid the model of Mother in Janet Leigh's bedroom and listened to how loudly she screamed when she saw it to test its effectiveness.

Trivia: Walt Disney hated the film so much that he refused to allow Alfred Hitchcock to film at Disneyland for another film he directed.

Trivia: The sound of the knife stabbing Marion's flesh in the shower scene was made by stabbing a melon.

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

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