Alejandro Jodorowsky had originally planned on filming Dune in the early-'70s, and had enlisted the help of Jean Giraud and H.R. Giger to create the movie's visual style. Salvador Dalí was enlisted to play the part of the Emperor, and Jodorowsky also intended to cast his own son Brontis Jodorowsky as Paul, David Carradine as Duke Leto, Orson Welles as the Baron, and Gloria Swanson as the Bene Gesserit Reverend Mother. The soundtrack was to be done by Pink Floyd, whose compositions would represent the progressive House of Atreides, and influential 70s French progressive rock band Magma, whose compositions would represent the evil House of Harkonnen. According to Jodorowsky, "The project was sabotaged in Hollywood. It was French and not American. Their message was 'not Hollywood enough'. There was intrigue, plunder. The storyboard was circulated among all the big studios. Later, the visual aspect of Star Wars: Episode IV - A New Hope (1977) strangely resembled our style. To make Alien (1979), they called Moebius [Giraud], Chris Foss, Giger, Dan O'Bannon, etc. The project signaled to Americans the possibility of making a big show of science-fiction films, outside of the scientific rigor of 2001: A Space Odyssey (1968). The project of Dune changed our lives." Jodorowsky also planned on making numerous changes to the source material, including making Duke Leto a eunuch and the spice a blue sponge. Author Frank Herbert openly despised these concepts.