Shot over the course of 4 years.
Was banned in the UK by the BBFC due to its high levels of violence. Now finally released uncut in 2018, 30 years after its original release.
Filmed entirely without filming permits.
The book Christy is seen reading is the Necronomicon.
In the scene where the gang members rob an armored car, the owner of the parking garage unexpectedly showed up and demanded that the film crew leave. The crew pretended to leave and when the coast was clear, started filming again. The owner showed up a second time and told everyone the police would be called if they did not leave.