Non aprite quella porta IV

Matthew McConaughey had just graduated college and planned on moving to California when he auditioned for this movie. He read for the part of a young motorcyclist who rescues Jenny at the end and rides off with her into the sunset (a role that was eventually eliminated). Before he left, writer / producer / director Kim Henkel asked if he knew of anyone who might be right for the role of the villain, Vilmer. McConaughey suggested two friends from acting class and left. He was about to get in his truck and drive to California when he stopped and realized, "What was I thinking?" He immediately turned around and asked Henkel, "Hey, can I audition for Vilmer?" Henkel gave him a spoon from the kitchen, told him to pretend it's a knife and tasked him with scaring his secretary. Then, in the middle of the audition, he told him to pretend his mechanical leg was malfunctioning. McConaughey was so convincing that he won the role of Vilmer on the spot.

When Darla picks up pizza from the drive-through, the employee in the window repeats her order of two medium pies and one large pie. However, all three boxes he hands her are the same size.

In the end credits, the "Patient on Gurney" actress was credited as ANONYMOUS.

The Finnish video version excludes numerous scenes including violence. Cut by more than 15 minutes.

Featured in The Return of the Texas Chainsaw Massacre: The Documentary (1996)