The pick up truck that the character Driver is in was actually owned by the director. It was also used as the production vehicle.
The scene where Paul and Jen meet the Hobo was shot over several different nights due to rain. In the master shot you can see a heavy rain briefly.
Due to the budget actors had to pull double duty. In the scene where Hobo meets Anubis, actor Don Sandeen plays both roles as does Christopher Kann who doubles for Anubis and the Hobo in certain shots.
Although the film was shot in a forest and the actors were climbing on various pieces of equipment (including Anubis who wasn't really able to see) no one got hurt and everyone did their own stunts.
In the infamous tanker sequence, Anubis is using a real machete and when he takes a swing at Jen's back pack you can see a piece of material fly off.