Continuity mistake: Manny is shot in the drug dealer's apartment at the beginning of the movie. He says the bullet went in and out. However, when he's in the bed with his girlfriend and his shirt is off, there is no bullet wound on his arm, or anywhere on his chest or torso.
Continuity mistake: As Tony chases Hector out of the hotel, a white handbag can be seen behind them on the pavement. Afterwards, once Tony shoots Hector, the bag is gone.
Continuity mistake: When Tony is in the refugee camp and he stabs the communist at the doorway, the camera focuses on the Cuban's face where he is standing upright staring straight ahead. The camera then changes to a rear view and the Cuban is suddenly in a hunched over position making for an awkward transition. (00:11:00)