Continuity mistake: Joe shoves Lee's friend Ann out the door and twists the lock so she can't come back in. After he and Lee argue, he then storms out the same door, which somehow opens for him easily, even though he hasn't unlocked it again. (00:31:10)
Continuity mistake: In the final race, Joe's car has two drivers in all the close-ups, but in the long shots, only one. (01:05:45)