Revealing mistake: In the soda shop, the waitress turns off the lights with her elbow because her hands are full, but she misses the light switch by 6 inches. (00:55:10)
Visible crew/equipment: As the Tin Man gets to the end of his song, he's dancing in front of three mirrors. If you look past him as he's centered in the middle mirror, you can see the camera lens looking out of the canvas at him.
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)