Every time one of the characters uses the skull lighter, the flame is a different color; Blue when Jordan White lights it, White when Xavier Red lights it and Reddish Orange when Amy Blue lights it.
Gregg Araki said Rose McGowan and Johnathon Schaech hated each other, and fought constantly during the entire production.
The film was shot mostly at night in Los Angeles in January 1994. The crew avoided well known landmarks and shot in undeveloped areas of urban sprawl (common in LA) to give the apocalyptic feel. The first day's photography was ruined in a lab accident and on the second day, the Northridge earthquake struck.
Jordan Ladd was originally cast as Amy Blue, but her mother, Cheryl Ladd, vetoed her playing the role at the last minute because of the sex and nudity (Jordan later ended up performing a nude sex scene in Club Dread in 2004). This explains the special "no thanks" closing credits for Cheryl Ladd and "others who had no faith" and a "special thanks" credit for Jordan Ladd. Araki and Cheryl later became friends, and Jordan Ladd does appear in his follow-up film Nowhere (1997).
The names of the lead characters - Amy Blue and Jordan White - were inspired by cartoonist Mark Beyer's early-90's underground comic strip "Amy & Jordan". In the strip, Amy and Jordan, a couple, often find themselves in terrible or grotesque situations.