Revealing: In the scene where the prostitute changes into the girl who haunts Nicholas Cage, the film jumps as the camera passes by the A pillar in the ambulance.

Factual error: In the scene where Cy Coates is impaled on the terrace guardrail, we see a shot of various emergency vehicles in front of the building, including FDNY Rescue Company 4. Rescue 4 is the rescue company for the borough of Queens; the movie takes place in Manhattan, so Rescue 1 would have been the unit that responded.

Other: In the scene where Nicolas Cage and Patricia Arquette are engaged in conversation over pizza, Nicolas Cage goes out of focus as he shifts in his chair.