2001: A Space Odyssey (soundtrack) being the 1972 arrangement by Eumir Deodato (itself used in the 1979 film "Being There"). Both "Zarathustra" and "The Blue Danube" have been used in numerous parodies of both the film itself and science fiction/space travel stories in general. HAL's "Daisy Bell" also has been frequently used in the comedy industry to denote both humans and machines in an advanced stage of madness. The initial MGM soundtrack album release contained none of the material from the altered and uncredited rendition of "Aventures", used a different recording of "Also Sprach Zarathustra" than that heard in the film, and a longer excerpt
Interpretations of 2001: A Space Odyssey machines". Kubrick was also confronted with the fact that, during the production of the film, the US and USSR had agreed not to put any nuclear weapons into outer space by signing the Outer Space Treaty. Alexander Walker in a book he wrote with Kubrick's assistance and authorisation, states that Kubrick eventually decided that as nuclear weapons the bombs had "no place at all in the film's thematic development", now being an "orbiting red herring" which would "merely have raised irrelevant questions to suggest this as a reality of the twenty-first century". In the Canadian TV documentary "2001 and Beyond",