Visible crew/equipment: In the beginning of the scene where Sandra Bullock is lying in bed talking to her maid, you can see the shadow of the boom on the pillow. It is not there very long, the shadow moves out of the scene quickly, but long enough to notice.
Crash (2004)
1 visible crew/equipment mistake - chronological order
Directed by: Paul Haggis
Starring: Sandra Bullock, Don Cheadle, Thandie Newton, Dato Bakhtadze, Karina Arroyave
Factual error: A key plot point hinges on the Iraqi fellow believing he has shot someone but caused no harm. A brief shot of the bullets he has loaded his revolver with reveals that they are black powder blanks. Such blanks produce large clouds of white smoke when fired (indeed, they are used specifically to produce that effect in movies), but the shooting scene shows no smoke at all.
Trivia: Despite receiving top billing, Sandra Bullock has only six minutes of screen time.
More questions & answers from Crash
Chosen answer: Since he was directly involved with the investigation, to identify the body would have been a conflict of interest. Therefore he had to notify the next of kin beyond himself.