Visible crew/equipment: After the party Rosemary and Guy have a fight when she tells him that she wants to go to Dr. Hill for a second opinion. At the end of the scene she sits down and says "it's alive" and you can see a shadow of the crew behind her to the right moving against the wall. (01:21:25)????
Continuity mistake: Hutch pays Rosemary a visit and is shocked by her appearance as they sit and talk in the living room. If you look closely there are two cushions placed between the record player and the record holder on the left in the screen. Two shots later when Roman walks into the room there's one cushion there and Hutch didn't move. (01:02:25)????
Continuity mistake: Hutch calls wanting to speak to Rosemary who's lying down on the right side of the bed. Guy brings in the phone and places it on the bed for her. When he puts it down the blanket on the left side is perfectly smoothed and tucked in but when he takes the phone back from her the blanket is messed up, and she hasn't gone near that side of the bed. (01:08:30)????
Deliberate mistake: As Hutch entered their apartment with his overcoat buttoned, his gloves were in the jacket pocket underneath and not in the overcoat. Later we see him take them out of his jacket and leave them on the coffee table as he speaks to Roman. Before he leaves Guy goes to the closet and gets Hutch's coat and the one lone glove appears where it shouldn't be, back in his overcoat pocket. (01:01:50 - 01:07:20)????
Factual error: Rosemary goes out to meet Hutch at the Time Life Building and we see the marquee at Radio City indicating that "The Happiest Millionaire" staring Fred Mac Murray and Tommy Steele is playing. The problem here is that it's already been established by the calendar on the Woodhouse's kitchen wall and by the Pope's visit it that this is winter 1965, but "The Happiest Millionaire" didn't premier until 1967. (01:10:25)????