Continuity mistake: During the interview, while sitting, his striped pants are unzipped for a few cuts, then they are zipped in later shots.
Continuity mistake: When Jack is at Deborah's California place talking to her on the couch her arm swaps from raised to lowered between shots.
Continuity mistake: During the beach scene John holds a clear mug where you can see the liquid. Later the mug turns black and opaque.
Suggested correction: If you watch carefully as the mug comes into shot you can see it is still the same clear mug and you can see the liquid. However, when John moves the mug (still in the same shot) so that he is holding it with both hands it appears opaque. Jack's mug is also less obviously clear in this shot. The illusion appears to be due to a changed camera angle compared to the earlier shot in which both mugs were see-through, possibly combined with a change in the natural light.
Continuity mistake: When Deborah tells Jack he must go to LA to make a ton of money his right arm is extended or not depending on the shot.
Revealing mistake: During the interview, you can see a monitor with the lyrics of "Something", even though he is supposedly improvising.
Suggested correction: This is a deleted scene. It is in the extras on the DVD but it is not part of the movie.
Continuity mistake: Before Jack plays "Let It Be" for his parents, he talks to his dad who is holding a coffee mug. His left hand goes from holding the mug to down at his side in the next shot.
Continuity mistake: During the performance of "Help!" on the rooftop at the beach, the weather changes from cloudy to sunny (and vice versa) instantly in different shots.
