Continuity mistake: After Rosemary calls up Elise Dunstan she hears something moving around in the apartment and turns her head to the right in order to see what it is. In the next shot when Guy and the others walk into in the room Rosemary's entire body is turned around looking at them. (01:56:30)????
Continuity mistake: Guy is lying down on the sofa as Rosemary shows him the necklace with the tannis root inside. His right ankle is leaning over the edge of the sofa right next to the lamp. Two shots later Guy says, "Well if you took it you ought to wear it" and the lamp has been moved a foot to the left of his ankle. (00:32:50)????
Continuity mistake: At dinner with Hutch, Rosemary sits at her place at the table and we see a plate on the bookshelf behind her. The plate is on the bottom left shelf, close to the center, but later in the scene as they are eating the plate has moved about six inches to the left. The books on the right side of the bookshelf are also rearranged throughout this scene. (00:07:25)????
Continuity mistake: Rosemary is using a yardstick to draw a line on a piece of paper as Guy walks in and tells her that Donald Baumgart got the part in the play that he was hoping for. She goes into the kitchen to get him a beer and returns to what she was doing and everything has been moved without anyone going near it. Most notable is the book rack and the piece of foam to the left of her. (00:22:30)????