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Continuity mistake: The building manager says, "Oh, an actor. We're very popular with actors," as they approach the door to The Dakota. In the next shot when Guy responds they're already about four or five feet through the doorway at the steps. (00:02:25)

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Continuity mistake: Rosemary and Guy walk into The Dakota and from the overhead shot we see the guard standing on the curb to left of the entrance. In the next shot of them inside the entranceway the guard is now inside the tunnel with them. (00:02:00)

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Continuity mistake: When Rosemary is playing Scrabble the angle of the shadow of her head on her collar changes between shots. (01:29:00)

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Visible crew/equipment: When Rosemary is playing Scrabble, a crew member casts a shadow on her left. (01:29:15)

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Trivia: This is the very spot at the Dakota building on 72nd Street in New York City where John Lennon was murdered. (00:02:00)

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