Continuity mistake: Minnie put something in the mousse that Rosemary ate and as she stumbles out of the kitchen John Cassavetes who is watching the pope at Yankee Stadium on TV, accidentally calls her Mia as he catches her before she falls. (00:41:40)
Deliberate mistake: As Rosemary is prepared to be raped by the devil she is lying on white sheets. In the next shot as she is being raped she's on black satin sheets. (00:47:30)
Continuity mistake: The books above their head board have been rearranged from the time before the rape to the next morning when Rosemary wakes up. Normally the books might have been look at in that period of time but on this night there was definitely no reading done. (00:49:00)
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: In the scene after learning she was pregnant, Rosemary cooks herself a "blue" steak (barely seared on either side), yet when placed on the table, and she commences eating, the depth of heat penetration indicates "rare" - much more cooked than "blue". (00:59:00)
Continuity mistake: Rosemary and Guy play Scrabble on a rainy day. They're sitting on the rug and Rosemary has both her hands touching the center of the red tile holder. In the next shot her hands are on the left of the tile holder. (01:00:05)
Continuity mistake: Rosemary and Guy play Scrabble on a rainy day and if you look out their living room it's mid-day. Rosemary feels ill and walks into the bedroom and looking out the window we see that it's still raining but it's now night. (01:00:20)
Continuity mistake: Rosemary feels ill and walks into the bedroom during the Scrabble game. Guy doesn't move from his spot but when she walks back in a small yellow sculpture of a bird appears on the table to the right of the screen. (01:00:50)
Continuity mistake: Rosemary quick fries half a piece of steak but by the time it gets from the frying pan into her plate it's a different piece without the chunk of fat attached to the side. (01:01:15)
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)
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: Roman walks into the living room and Hutch is sitting on the couch. He doesn't move from his spot but just about everything on and around Hutch moves, but most noticeable are the three ottomans around the coffee table. (01:03:20)
Continuity mistake: Roman walks into the living room and sees Hutch sitting there on the couch. If you look closely at the window all the pillows have been moved slightly, with the pillow on the right now partially covered by the drape. (01:03:25)
Continuity mistake: Hutch and Roman talk about vitamins and Dr. Sapirstein in Rosemary's living room. Look at the brown chair to the right of the window, it's obvious someone's been sitting in it as the back is all ruffled up. In the previous shot before Roman walks into the room it's not. (01:04:15)
Revealing mistake: After meeting Roman, Hutch and Rosemary talk about things as they have coffee in her kitchen. If you look out the window the backdrop has no buildings and the sky is black and white. (01:05:40)
Continuity mistake: Hutch and Rosemary sit in the kitchen having coffee while they're talking about Minnie and Roman. Guy walks in and Rosemary's coffee cup rotates 180 degrees between shots with out her touching it as she speaks to him. (01:06:00)
Continuity mistake: Rosemary asks Guy if he would like to have some coffee with her and Hutch and proceeds to pour him a cup. In the next shot the coffee is already on the table. (01:06:10)
Other mistake: Guy goes to the closet and gets Hutch's coat as he's about to leave after having coffee with Rosemary. If you look at her she looks ghostly as they applied more makeup to her face between shots. Unfortunately they missed some spots around her eyes and on her forehead. (01:06:50)
Continuity mistake: Guy watches an old TV western as Rosemary lies down in bed. The TV only has one wire dangling from the bottom of it but in the next shot as the phone rings with Hutch's phone call, it now has two wires dangling from the bottom. (01:08:05)
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)
Chosen answer: It doesn't have a specific title. It was a lullaby written for the film by Krzysztof Komeda. There's a few variations of the lullaby heard throughout the film, the opening credits version is listed as "Rosemary's Baby Main Theme - Vocal."
Bishop73