Many of the wrestlers used in the film were wrestlers who worked out of the California Indy circuit. All who at one time or another worked for UPW run by Rick Bassman.
The second time Rick visits the junkyard he gets mud stains on his blue shirt. As he's talking to Jeff the stains are still there. However, after he says that the fight is off and walks behind Jeff, the stains are gone.
In the main event in the junk yard, when Jeff and Rick fight it's to be what's called a "shoot fight" (a real fight between two wrestlers). During the match they keep doing moves and spots that could only be done if it was planned out ahead of time.