The young baby laughing at Justin during the screening of his movie is actually actor "Ryan Nage's" daughter.
Foxxy's is was based on a local Pennsylvania store chain called "Ollie's," and was originally written as taking place there. However, an agreement could not be reached to allow shooting there, so the Producers recreated most of the signs verbatim.
Several dropouts by the cast led to a number of actors being literal last-minute replacements. Doug Howard, Mitch Bentley, Dave Colstock, and Fred Lauver were cast within 24 hours of their first call time.
The message on the soda bottle in the fridge wasn't a prop. One of the workers in the store grew irate with the film crew, thinking they were drinking his soda when they were filming after the store closed.