A large portion of the film was shot in an abandoned police station in Connecticut. When it was abandoned, much of the furniture and equipment was left behind and was used as props in the movie.
A number of crew members heard a woman scream when shooting in the mens' cell block and several were so scared they ran completely from the building.
The chainsaw really wouldn't start. The filmmakers thought it was so funny that they used it in the final film.
On the night that Leighton was pelted with rocks, it was so cold and windy that only a few crew members could stay outside at a time. The wind was so strong that it would blow the foam rocks off course and they had to be thrown from only a few feet away.