Since Joe B. Barton was only 5'9", he had to stand on a ramp in certain scenes in order to appear taller than he actually was.
Joe Barton, the actor who plays Buddy, was shorter than the director had wanted the hulking character to be. In some scenes Barton is standing on stacked pallets to make him appear taller than the people he's killing.
Many of the crew member names cited in the ending credits were made up in order to make this film seem like it was made on a much larger budget than it was actually made for.
The opening montage with pigs being slaughtered was shot at an abattoir in Oregon.
Buddy's snorting was added to the soundtrack in post-production.