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Continuity mistake: When the building manager opens the door to the apartment we see three lights down the hall, one lamp dead center and two nightlights one on the left and one on the right. In the next shot the nightlight on the right is turned off. Later when they walk out of the kitchen it's back on again. (00:03:55)

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Continuity mistake: The building manager says, "she was quite a woman" and we see two gray phone books on top of a desk on the far wall. The two phone books are not even with each other when we first see them but in the next shot as Rosemary walks over to the desk they are. (00:04:15)

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Continuity mistake: As they wait for the elevator Rosemary is standing to the right of Guy. In the next shot as they walk into it Rosemary is in front of Guy. (00:02:45)

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Continuity mistake: As Rosemary walks out of the elevator the sides of her hair are curled. When we saw her earlier as she met with the building manager her hair was straight. (00:03:15)

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Continuity mistake: The operator closes the elevator door and there's no railing behind it. In the next shot from inside the elevator the operator is holding on to a protective rail. (00:02:50)

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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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