Continuity mistake: When Jule has found her phone she calls for Jan but then Hardenberg arrives home and catches her. He then wrestles her to the floor, so Jan comes and beats him off her. However, as he wrestles with Jule, her black woollen hat falls off onto the floor. But after Jan beats him off her it is back on her head firmly.
Visible crew/equipment: After the first apartment scene, when Peter gets into the Volkswagen, as he opens the door, you can see a cameraman reflected in the smaller window on the door. Then once he has pulled out and is driving away, you can see a cameraman inside the back of the VW Bus.