Trivia: The bystanders looking at the camera when Rosemary crosses the street were staring in disbelief as Mia Farrow actually wandered out into oncoming traffic! Polanski did not want to "stage" the scene, so she was literally risking her life.
Trivia: This is the very spot at the Dakota building on 72nd Street in New York City where John Lennon was murdered. (00:02:00)
Trivia: The director, Roman Polanski, started the trend of an actor walking into a room and then going to the left, or right, and disappearing behind a wall and the audience when they first saw this shifted to their right, or left, so they could see around the corner. I don't think the director expected this but it did happen.
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