Deliberate mistake: A shot that lasts three seconds is backwards. The previous shot is a point of view outside an elevator and it shows Maria descending into the workers' city. The very next shot is a point of view from inside the same elevator and it shows the elevator ascending out of the workers' city. (Observed in both the Kino and Madacy DVD's. The timecode is for the Kino DVD.) (01:32:25)