Continuity mistake: During the scene when Ernest is driving the bus "blind," the type of bus changes from a Ford to an International.
Continuity mistake: When Ernest first meets the "second chance boys", the boy with the yellow shirt's sunglasses disappear and reappear between shots.
Continuity mistake: When fighting the construction worker, Ernest's hat flies off. In the next shot the hat is suddenly back on his head.
Continuity mistake: When the group is sitting around the camp fire, watch Moose's jacket. In the first shot it's on, then off, then on again.
Continuity mistake: In the opening scene where Ernest is driving around the camp, he runs over both a trashcan and a tent. A few seconds later in another shot, if you look closely in the background, the tent is standing back up. It is the same tent because the trashcan is still knocked over.