Continuity mistake: After the scene where Sara and Maria tie up Quentin and take pictures of him naked, when they are leaving the hotel with Quentin tied up, Sara's hair is just below her shoulders, but the whole movie her hair is to her waist.
Continuity mistake: After Pierce Brosnan does the deal for the bullet, Anjelica Huston rides off with his horse attached to her carriage. Only problem is we see the entire exchange, and at no point does anyone tie the horse on.