John Lydon has said that Cox never spoke to him as a reference, and that the film got little right - Gary Oldman's portrayal of Sid Vicious was of his stage persona, and not the actual person. In fact, neither the Sex Pistols nor Sid's solo work appeared on the soundtrack. Most of the score for the film was composed by Joe Strummer of the Clash, and the actual soundtrack only featured Sid Vicious songs as they were performed by Oldman.
Even if it lacks in accuracy, the film is a good one, with one of its best facets being the fact that it was unwilling to glamorize the pair's drug addictions, or their lives or deaths.
Filmmakers furthered the idea that this fictional band was real by releasing a nontraditional soundtrack. Rather than simply using the music from the film, many Canadian punk bands were enlisted to record songs from the film, as well as to contribute to the liner notes about how Hard Core Logo had been an influence on their music. That album, A Tribute to Hard Core Logo (Compare Prices), furthers the mythos of this fictional punk band with a story richer than many real ones.
Original Germs guitarist Pat Smear (later of Nirvana and the Foo Fighters) produced the music for the film, while Chris Pontius of Jackass and Wildboyz makes a cameo as Black Randy, frontman for L.A. punk band Black Randy and the Metrosquad.
In one of his earliest films, Emilio Estevez only to fall in with repo man Bud (played by Harry Dean Stanton), who offers him a job. In a surreal turn of events, the repo men find themselves competing with rival repo men and secret agents to repossess a 1964 Chevy Malibu with a $20,000 bounty - as well as the bodies of radioactive aliens in its trunk.
The soundtrack to Repo Man is probably the best soundtrack ever produced (Compare Prices), so much so that it's even spawned its own tribute album, and the cast includes Zander Schloss of Circle Jerks, as well as an appearance by Circle Jerks as a nightclub band.
For all its goofy humor, Repo Man also depicts an underlying paranoia, a sillier representation of the pervading unease in America in the '80s during the Cold War. It's never really spoken of, but it's ever present, making this film a much bigger statement on America in the '80s than it appears at its outset.