Mercury contributed to the Richard "Wolfie" Wolf remix of the song "Love Kills", used as the end title theme for National Lampoon's Loaded Weapon 1. The song was originally recorded in 1984, when it was included on the soundtrack for the restoration of the 1927 Fritz Lang film Metropolis. First written by Giorgio Moroder in collaboration with Mercury, and produced by Moroder and Mack, "Love Kills" debuted at the number 10 position in the UK Singles Chart.