Continuity mistake: Heinz Brandon gives Jill a medal. Jill's nails are rather long and shining. In the next shot, we see Jill's hands holding the medal: now her nails are very short and not shining. (00:40:05)
During the scene in the Sheriff's car, after the Angels choke the Sheriff and Deputy, they lose control of the car. It goes off the road and a ramp is seen, hidden by some trees, that the car goes off to end up in the swamp.