Other mistake: When the people in the bunker are watching the Reverend walking, there is a distinct meshing of two separate scenes.
Other mistake: The first time we see George Loomis back at the Rainbow Cabins after his supposed death he's by the garbage cans in the back of cabin B with a brick wall on the left. The next time we see him two shots later the film has been reversed with the brick wall now being on the right. (00:46:45)