2001: A Space Odyssey (soundtrack) used is Ligeti's "Lux Aeterna" and an electronically altered form of his "Aventures", the last of which was so used without Ligeti's permission and is not listed in the film's credits. Since the film, "Also sprach Zarathustra" has been used in many other contexts. It was used by the BBC and by CTV in Canada as the introductory theme music for their television coverage of the Apollo space missions, as well as stage entrance music for multiple acts including Elvis Presley late in his career. Jazz and rock variants of the theme have also been composed, the most well known
2001: A Space Odyssey its scientific realism, pioneering special effects, and provocatively ambiguous imagery and sound in place of traditional narrative techniques. Despite receiving mixed reviews upon release, "2001: A Space Odyssey" is today thought by some critics to be one of the greatest films ever made and is widely regarded as one of the best science fiction films of all time. It was nominated for four Academy Awards, and received one for visual effects. It also won the Kansas City Film Critics Circle Best Director and Best Film awards of 1968. In 1991, "2001: A Space Odyssey" was deemed culturally significant by the