David Scott Diaz and Dax Spanogle were both cast because of there performances in "The Hunting Trip" which also was directed by Dustin Bacon.
In the final fight scene, David Scott Diaz and Dax Spanogle actually hit each other. They choreographed the scene in 10 minutes.
David Scott Diaz gained 10lbs of muscle to make his character "Vic" more intimidating.
The scene when John gets shot in the trailer, 3 girls in bikinis were to be partying. But due to time, nobody was available and the characters were cut from the scene.