Near the end when Robert Pine was in the camper trying to get out, there is a window next to the door, from the outside view, there are no windows by the door on the back wall of the camper.
When Robert Pine, the murderess and the cops are standing over the ravine where the car crashed, the dark sky is an obvious day-for-night filter: the profuse small clouds aren't moving at all. The following shot from a different angle promptly reveals that it is daylight and, seen from over the actors' shoulders, there is bright sunshine. The dramatic night sky and static clouds is clearly out of place.