- Inspiration for the Work: John Carpenter was inspired by Night of the Living Dead (1968) and Rio Bravo.
- Mid-Development Genre Shift: John Carpenter had hoped to make a Howard Hawks-style Western like El Dorado or Rio Lobo, but when the $100,000 budget prohibited it, Carpenter refashioned the basic scenario of Rio Bravo into a modern setting.
- No Budget: The film had a very small budget, as witnessed by the copyright owner "CKK Corporation" (which is short for the initials of John Carpenter and co-producers J.S. Kaplan and Joseph Kaufman, who financed the film out of their own pockets).
Trivia / Assault on Precinct 13 (1976)