Continuity mistake: Minnie and Roman have Rosemary and Guy over to their apartment and Roman serves drinks to them as they sit on the couch. We can see the bottom of the silver platter that he uses to serve the drinks and it's totally dry, but in the next shot vodka blush is dripping from it onto Minnie's carpet. (00:25:10)????
Continuity mistake: In the scene where Rosemary is having blood drawn to see if she's pregnant, the nurse is inserting a needle into Rosemary's arm. The arm appears fake as it is noticably larger than Rosemary's other arm, and the angle of the shoulder is off. (00:52:10)
Continuity mistake: Rosemary goes to the kitchen and gets a knife and proceeds back to the closet that connects her apartment with the Castevet's. When she left the closet before getting the knife the shelves were stacked against the doorframe, but now as she returns the shelves are neatly stacked against the far wall. (02:05:25 - 02:07:35)????
Continuity mistake: After she figures out the anagram using her Scrabble game Rosemary unlocks the front door and lets Guy in. They both walk into the kitchen and the book "All Of Them Witches" is sitting on the kitchen table. They walk out of the kitchen only to return later and the book has spun around and is opened to a different page on the table (just about everything else on the table with the chairs included have also moved). (01:30:55)????
Continuity mistake: In the Castevet's apartment Roman spills the vodka blush on the floor and Minnie points at him with her left hand extended in front of her. In the next shot her hand has been lowered and is at the same level as her legs. The blue towel in her lap has also been moved to the left. (00:25:15)????
Continuity mistake: In the basement Rosemary talks to Terry Gionoffrio who shows the good luck charm that the Castevet's had given her. At first Rosemary holds it between the thumb and first finger of her right hand, but then in the next shot her thumb has moved to the right and is no longer touching the charm. (00:14:15)????
Continuity mistake: Rosemary takes out the Scrabble game again to try to figure out what the anagram that Hutch warns her about means. "All Of Them Witches" is spelled out and she proceeds to jumble up those letters. If you look closely in the next shot she's working on an entirely different section of the floor. (01:28:35)????
Continuity mistake: Rosemary takes out a Scrabble game from the book shelf to try to figure out what the anagram means. If you look at the lamp in the center of the shot you'll notice that it's behind the chess set on the table. No one goes near it but later in the scene the lamp has been moved to the right of the chess set. (01:28:25 - 01:29:40)????