During Bill's first diving expedition to the wreck, both the diver's watch on his wrist and (a bit later) the knife in his hand miraculously switch sides (from left to right).
When Bill, the Inspector, Lisa and Stanhope drive out to the cabin, Bill and Stanhope are sitting in the back of the jeep, and in one shot during the drive their positions are reversed (Left/right - right/left - and then back to the way they were at the beginning), even tough the jeep never stopped.
Toward the end, during the chase near the castle ruins, the zombie breaks the jeep's rear view mirror with his elbow before (temporarily) escaping. Yet when Lisa tells Bill about what happened, she says that "before he ran off, he smashed the mirror with his bare FIST."