Revealing mistake: When the killer is putting masks on in front of Maggie, you can see the dead body of Tina hanging behind Maggie. The dead body moves / shakes / breathes many times throughout the scene.
Popcorn (1991)
1 revealing mistake
Directed by: Mark Herrier, Alan Ormsby
Starring: Dee Wallace, Jill Schoelen, Derek Rydall, Tom Villard
Genres: Horror
Continuity mistake: When the killer rips his mask off to expose his face to Maggie, his eyes go from brown to yellow between shots. It is explained later that his yellow eyes becomes brown thanks to colored contact lenses, but the killer does not remove any contacts when rips off his mask.