Continuity mistake: When the three T-Birds go to moon at the TV camera at the National Dance Off, Doody says "1, 2, 3, go!" and pulls down his trousers to his ankles. In the next scene, his trousers are suddenly pulled right up to his buttocks.
Continuity mistake: During the last part of the Gold number in the Emerald City, one of the dancers has a costume with a detachable ruffled skirt. The skirt alternately disappears with changing shots.
Continuity mistake: Towards the end of the movie, after FVB (Aerosmith) sings, and Strawberry Fields (Sandy Farina) falls off of the platform. She lands on her front, but when Billy Shears (Peter Frampton) runs down the stairs to her, she is on her back.
Continuity mistake: When Jeff gets into the studio, the album playing is in the middle of the album, not at the end as shown one minute earlier. (00:05:26)