In the beginning of the movie, Marybeth asks a girl with a piercing where the office is. That girl is actually the director Robert Rodriguez's sister, and she has a tattoo in the same place where George Clooney had in From Dusk Till Dawn, another of Rodriguez's movies.
Robert Patrick and Harry Knowles both star in this film. Robert Patrick starred in Terminator 2: Judgment Day, while Harry Knowles was one of Terminator 3: Rise of the Machines' biggest critics.