Continuity mistake: In the final scene in which a man is shot in the airport (part of this scene actually recurs throughout the movie), the psychiatrist woman leans over him to hold him as he dies. From one angle, he reaches up to her face and his hand is clean. In the next angle, his hand is covered in blood as he touches her face.
Continuity mistake: In the taxi on the way to the airport, the shot looking through the windshield shows the steering wheel turned ninety degrees even though they are travelling in a straight line, when shown from the back seat, the wheel is straight.
Continuity mistake: The boy does not wear teeth braces at the beginning of the movie, but in the second flash-back (just after the psychiatrists' board meeting) the boy does. (00:25:30)
Factual error: In the beginning, James is collecting insects but it is cold enough for snow. Insects don't stay exposed to the cold like that.