Continuity mistake: As Buddy and the kid pull away in the car for the first time, Buddy is staring out the right side of the car. The shot cuts to a different angle and he's looking more toward the left.
Continuity mistake: As the kid drags Buddy's body down the road, you can hear his glasses scrape the ground because his head is tilted downward. The shot cuts to a different view and you can hear the dragging for a second but Buddy's head has turned to face upward. Not only is the sound wrong here, but Buddy's head has changed between shots without him moving independently, as he's dead.