2001: A Space Odyssey (soundtrack) choir was performed at Symphony Hall in Birmingham, again accompanied by the Philharmonia Orchestra conducted by Benjamin Wallfisch together with the choir Ex Cathedra. A presentation of the film accompanied by live orchestra and choir premiered in the United States on August 18, 2015, at The Hollywood Bowl in Hollywood, California, accompanied by the Los Angeles Philharmonic conducted by Brad Lubman together with the choir Los Angeles Master Chorale. "2001" is particularly remembered for the use of the opening theme from the Richard Strauss tone poem "Also sprach Zarathustra" (Usually translated as "Thus Spake Zarathustra" or "Thus Spoke Zarathustra" where
2001: A Space Odyssey (film) malfunctions because of being ordered to lie to the crew of "Discovery" and withhold confidential information from them, namely the confidentially programmed mission priority over expendable human life, despite being constructed for "the accurate processing of information without distortion or concealment". This would not be addressed on film until the 1984 follow-up "". Film critic Roger Ebert wrote that HAL, as the supposedly perfect computer, is actually the most human of all of the characters. In an interview with Joseph Gelmis in 1969, Kubrick said that HAL "had an acute emotional crisis because he could not accept evidence of his