Continuity mistake: When they jump on the train at the end of the film, the train tail light is on the right hand side and its also a light that didn't come in until the 80's and in the long shot of the train speeding along the tail light is on the left hand side.
Factual error: As Freddie is walking toward the house, the streetlight to the right of the shot is a modern post-top unit with a one part photocell visible on top. In the 70s in the UK it would have been a much older lantern with no photocell, as it would have been time switch controlled. (01:03:00)
