Other mistake: When the evil warlock breaks his way out of the condemned house, he uses explosives to escape, but for some odd reason, the door is the only thing affected by the explosion.
Continuity mistake: At the party, Angie asks the DJ to play a song. She does it grabbing him by the arm; she releases and pulls back, but she is holding him again in the next shot. (00:37:20)
Audio problem: During the party at the end of the film, the hand clapping and dancing drifts out significantly out of time and sync with the music.