Other mistake: When Trash first comes back to life as a zombie there is a shot of rain falling and smoke swirling. The shot plays forward, then reverses for a second or two before playing forward again. The rain falls up and the smoke reverses direction.
Other mistake: When Sheriff Tucker shows Pam the newspaper clippings taken from Roy's wallet, plainly two of three columns in the article are identical and have nothing to do with Jason. (01:21:35)
Other mistake: It is stated at the beginning of the film that the events that take place start in the spring of 1976, and span over the summer. The Climax, and final scene of the movie, take place on Halloween night. In the scene directly after Milt Sturmfuller was killed, the gas station attendant is seen reading about the slaying in the local newspaper. The date on the paper is Friday September 8, 1980.