Revealing mistake: When David drives through the outer wall of the bakery products store, in the side shot the wall first bends, then it breaks as the car goes through. Also, the next back shot is a repetitive action, although the window breaks quite differently in both shots. (00:50:45)
Revealing mistake: David drives through the paint store window and the interior shot shows many exploding paint cans, among them exploding blue paint cans. In the next exterior shot, cans are falling directly in front of the car, but are not exploding paint as in the first shot. More importantly, the yellow and blue paint cans that have been stored overhead, fall from above and have no lids, thus spilling paint as it falls down towards the car. Obviously done for the effect of a greater paint mess. (00:37:10)