Audio problem: During the opening overture, right when the orchestra starts "Maria", you can hear someone sneeze in the background. It's easier to hear on the soundtrack but you still can hear it in the movie.

Continuity: In the fighting scene between the "Jets" and the "Sharks" towards the beginning, when Bernardo cuts Baby-Jon on the cheek, the cut clearly switches from one cheek to the other between the time of him being cut, to when speaking to the police officers.

Continuity: Near the end of the movie, when Maria (Natalie Wood) is kneeling over Tony's (Richard Beymer) dead body, watch the cross around her neck. first it's sort of tucked into the top of her dress, then it is on the outside. it goes back and forth several times.

Continuity: In the prologue, when the Jets are talking about Tony, Ice goes, "Man, remember them fists the day we clobbered the Emeralds." you can see A-Rab with his arms crossed. In the next shot they're uncrossed and he crosses them.

Continuity: When Maria is hitting Tony while saying "Killer," her hair is across her left cheek. In the next shot, it is completely away from her face. (Time)