Factual error: The car's cigarette lighter pops out (ready to use), and Bo exits the vehicle carrying the still-lit lighter, glowing like a flashlight. Nearly a minute and a half later, the cigarette lighter is still fully glowing - but car cigarette lighters only stay lit for a much shorter period of time. (01:20:00 - 01:21:23)
Continuity mistake: Billy pokes Wally toward the end of the plank until Wally's left boot tip is over the edge. When the camera returns to the plank, both of Wally's feet are 1-2+ feet away from the end. In the next camera shift, Wally's feet are at the edge again. (00:13:20 - 00:13:55)