Deliberate mistake: When the crow drops Shelley's ring into Sarah's hand at the end of the film, the sound of metal upon metal is heard. (01:30:00)
Deliberate mistake: When Eric first enters his old apartment, watch very closely. When he first wanders in the room, his body has a slightly weird jitter and blur to it that doesn't quite match his movements. This is because the footage of Eric walking through the doorway is actually taken from the scene in the alley. They "cut" Brandon Lee out of that scene and inserted him into the apartment since they didn't have a shot of him. But unfortunately, it has some odd "glitches" due the footage not quite matching.
Answer: Top Dollar (the main villain played by Michael Wincott) sent them over there to talk them. He sorta explained at the end. He 'believed' that he owned the building. I think he said something along the lines of: "Hell, nothing in this area happens without my say so." I guess Eric and Shelly's complaints were going to attract attention with the authorities and Top Dollar did not want that.
XIII