Continuity mistake: At the end of the movie when Pam returns to her dorm room she heads to the bathroom for the final surprise. When she walks towards the bathroom door you can see the door is only slightly ajar, however when the shot changes to inside the bathroom the door is now almost fully open (open enough to see Pam fully).
The Prowler (1981)
1 continuity mistake
Directed by: Joseph Zito
Starring: Farley Granger, Lawrence Tierney, Christopher Goutman, Vicky Dawson
Revealing mistake: The Prowler's just killed Lisa in the pool, yet he's walking across a lawn completely dry. Clearly this is footage reused from when he was outside the dorm earlier.
Roy: Come on, kid, don't play hard to get. What about New Year's Eve?
Francis Rosemary Chatham: Well, that was different. I couldn't help myself.