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
2001: A Space Odyssey (novel) and Bowman are directed to disconnect Hal for analysis. These instructions are interrupted as the signal is broken, and Hal informs them that the AE-35 unit has malfunctioned. As Poole is removing the unit he is killed when his pod accelerates into him, crushing him. Bowman, uncertain of Hal's role therein, decides to wake the other three astronauts, and therefore quarrels with Hal, with Hal refusing to obey his orders. Bowman threatens to disconnect him if his orders are not obeyed, and Hal relents. As Bowman begins to awaken his colleagues, he hears Hal open both airlocks into space, releasing