The band members of Easy Action, who play the band in the film, had never acted before and to overcome their stage fright, Mats Helge Olsson fed them copious amounts of beer. The band and several of the crew members made the film while drunk.
The "Blood Tracks" song performed by Easy Action in the film was never commercially released on any of their albums. There is no existing public copy aside from that found in the film itself, which has characters in the background speaking over it.
Singer Zin Zan left Easy Action the same year the film was released. He was replaced by Tommy Nilsson.
Easy Action all agreed it was a bad decision not to play themselves as a fictionalized version of Easy Action, using their real names.