Crew or equipment visible: During the long tracking shot of the mob goon (Kenny) entering the director's house, a crew member is reflected in the window.
Crew or equipment visible: When Adam Kesher leaves the meeting to smash the limo's windows, the crew is reflected in the window across the street, pushing the cameraman and dolly.
Crew or equipment visible: In the shot of the dark colored car with the two men in suits driving by the apartment complex right before Betty Elms leaves for her audition (1:13:23), for a moment the top of the camera is reflected in the bottom part of the car's rear window.
Errors made by characters (possibly deliberate errors by the filmmakers): In the scene were the detectives talk about finding the gun in the back of the limo, they call the limo a "Caddy" when in fact the limo is actually a late 1980's Lincoln Town Car Stretch Limo.