Factual error: This film is set in the 1960's. The Ford transit van belonging to Russell, the group's roadie, is a facelifted 1971 model.
Continuity mistake: Friday is at the fashion show, and after arguing with her friend who called her on NYE, she is talking with the photographer. She is about to playfully slap him; between these two shots a quite noticeable lady in furs and purple polka dot dress is walking from left to right in the first one, right to left in second. (00:20:55)
Continuity mistake: When Gary is in the restaurant with Julia he writes out the card asking Joe Baker to join them. As soon as Gary picks up his pen the angle changes and the note is written in full.
Continuity mistake: After Willy Clark has a heart attack, Al Lewis goes to his apartment for a visit. Willy's nephew Ben is standing between the two men with his right hand resting across his stomach. In the long shot, his right arm and hand are alongside his body.
Factual error: On their journey, Rooster is bragging about his navy colts, when actually his sidearm is a Colt .45 Peacemaker, also known as an Army Colt M1873.
Factual error: When the Chinese are loading crates onto the truck with St Paul's in the background, two much more modern buildings are visible either side of the cathedral - out of keeping with the 1910s/20s setting.
Continuity mistake: As the animated film opens, Charlie Brown's mailbox has a small red flag that is attached to the rear of the mailbox with the flag facing up. At the end of the film, the flag is attached near the front of the box and it is facing down.
Audio problem: When Kipper are performing towards the end of the film, Tim the drummer is late on stage and the other band members have started to play their instruments, but you can still hear the drums play before Tim picks up the sticks.
Continuity mistake: The line of traffic on the landing side of Tower Bridge is completely different to when the jaguar lands and the capri lands.
Factual error: Carnehan describes himself as a "gunnery sergeant". This is an American rank and no such rank has ever existed in the British Army.
Revealing mistake: When the motorbike randomly explodes after Terri and Dave get out of the car, it is obvious that the explosion does not come from the bike, but from the shrub behind it, which also happened to creep up closer between shots. (00:07:30)