2001: A Space Odyssey (film) for its scientifically accurate depiction of spaceflight, pioneering special effects, and ambiguous imagery. Sound and dialogue are used sparingly and often in place of traditional cinematic and narrative techniques. The soundtrack incorporates a number of pieces of classical music, among them "Also sprach Zarathustra" by Richard Strauss, "The Blue Danube" by Johann Strauss II, and works by Aram Khachaturian and György Ligeti. "2001: A Space Odyssey" was financed and distributed by American studio Metro-Goldwyn-Mayer, but filmed and edited almost entirely in England, where Kubrick lived, using the facilities of MGM-British Studios and Shepperton Studios. Production was subcontracted to Kubrick's production
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",