(at around 1 min) When they go to the hotel and an old woman opens the door, she wears a jacket with one collar. There is a brooch on it, but when they have gone in, the woman's jacket has changed to another one with two collars. The brooch is on the upper collar and smaller.
When they pull up at the gas station they fuel the car, which is a Trabant, in the back of the car. The Trabant's fuel tank is to the front, under the hood and so is the hole where you put the pump in.