Continuity mistake: During the fight at the bar, the bald man is lying against the wall, with a man on top of him. Immediately after, barely half a second later, their positions are totally different: the bald man is away from the wall and on top of the other man plus the surrounding people have changed places and pool cues have appeared out of nowhere.
Continuity mistake: When the farmer asks Adams if he knows what he's doing, check the man in the background: He walks inside the ditch, then a shot later he is out and walking inside again; but then another shot afterwards he's out again and walking inside for the third time. All in a matter of 3 seconds. (00:18:40)