Continuity: When the camera is zooming towards the playground, there's a guy on the right climbing the fence. He disappears from the fence half a second later.

Continuity: In the begining, when the Jets are snapping their fingers, the guy with the blue t-shirt has his arm against the fence. In the next shot he doesn't.

Continuity: When Riff is talking with Bernardo at the bar, the first shot shows one hand bent over the table. A frame later both arms are crossed together.

Continuity: In the beginning, an overview shot of the playground and the Jets is shown, the movie then cuts to a closeup of Tony snapping his fingers. In the closeup, there is a boy riding his bike past Tony that was no where to be seen in the previous shot from above.

Continuity: During the song "I Feel Pretty," Maria throws a fan up into the air but it never comes back down.

Continuity: In the "Dance at the Gym" scene, while everyone is doing a pelvic swivel with their partners, Riffs arm is around Graziella's waist. In the next shot, his arm is down.

Audio problem: After Anita discovers Tony and Maria's tryst, Maria says "Now you know." She completely botches her Puerto Rican accent. She practically sounds British.

Continuity: During the number, "Gee, Officer Krupke," Ice is standing right behind Riff, right before he sings "Dear kindly judge your honor..." then suddenly he's in the doorway of Doc's candy store.

Revealing: In the dance scene, when the two gangs are "battling," if you look in the background at the Sharks side, you can see Maria among others mouthing the rhythms of the songs.

Continuity: Maria prays that her brother's death is untrue, she says "Le suplico no puede ser." Her fingers are woven between each other. When they show the back shot of her, her hands are cupped and then she goes back to the previously mentioned position.

Continuity: When Glad Hand is telling them about the get-together dance at the gym, you can see A-Rab putting his arm on Action's shoulder, then in the next shot he does it again.

Continuity: When the camera zooms into the basketball field, the shadow of the Jets points in a 8 o'clock direction. In the close ups it's a 2 o'clock.

Continuity: When Maria finishes singing "I feel pretty" the purple fabric rests around her left shoulder. A frame later, from a new angle, it's resting around her arm.

Continuity: After the Jets and the Sharks have challenged themselves, Tony takes his right hand to his tie, but the immediate shot shows the hand by his side.

Continuity: A spider web drawn by a girl appears on the close-ups but disappears in the aerial shots.

Continuity: In the bar, when the cop is asking where the fight is going to take place, he addresses a guy in the back. His position and that of his tie changes in half a second when the angle changes.

Continuity: In the basketball field, the guy with the white t-shirt and pink vest is laying against the fence. In the next shot he is slightly turned to the right.

Continuity: At the bar, 2 of the darts are very close together in one shot, and farther apart in the next.

Audio problem: When the sharks are singing "We're going to hand them a surprise tonight" in the quintet version of Tonight, someone sings the wrong note on the word "Tonight".

Continuity: At the dance, when everyone is swaying with their partner, you can both of Ice's hands on Velma's back, then in the next shot when it's following baby John, you can see Ice put his hands on her back again.