Continuity mistake: While Adam and Ders are on stage, Blake comes up, still tied up with the ropes around his arms and chest. Then in one shot, the rope is loosened and hanging off his shoulder, but then he's tied back up in the next shot.
Continuity mistake: As Adam and others are talking to his grandfather's widow, he has a 40oz in his left hand which switches hands a couple of times. (00:29:00 - 00:30:00)