 A heavily edited version of the film was shown on British television c.1991  which excised most of the violent and horrific scenes, most notably from the  last third of the film, including both scenes where Brent is forced to attack  Nova, the revelation of the underground humans true appearance, the fight  Brent & Taylor are forced to have in the prison cell, the killing of the  mutant guard on a spiked door, and much of the shoot