Deliberate mistake: When the blonde girl is doing a strip tease, she has long hair which reaches far down her back. However when they show a flash shot of her breast as she spins, her hair is only to her neck. Obviously a double.
Slumber Party Massacre II (1987)
1 deliberate mistake - chronological order
Directed by: Deborah Brock
Starring: Crystal Bernard, Jennifer Rhodes, Kimberly McArthur, Patrick Lowe
Continuity mistake: After the murder with the yard sign, the killer puts the sign back into the yard, with no blood on it.
Sally: My face it turning into one big pimple.
Courtney: Sally, I don't see a thing.
Sally: You may not see it but its there. There's one, its just lurking below the surface.