Paul L. Smith's and Jack Taylor's dialogue were dubbed by Edward Mannix, who made a career about giving English voice acting on Italian films like Zombi 2 and Cannibal Holocaust.
Ian Sera was also dubbed, due to having a thick Gibraltarian accent.
Stillborn Franchise: Juan Piquer Simón announced in 1991 that he was working on a follow-up film called Two Pieces that he promised would be wilder than the first. For unknown reasons, the project never materialised.
Throw It In!: The scene of the tennis player victim wetting herself had the actress actually wet herself due to the chainsaw being too close to her and the director decided to keep it.
