Classical music (music created by musicians who are commonly not classically trained, often from a purely oral tradition). Some composers, like Dvořák and Smetana, have used folk themes to impart a nationalist flavor to their work, while others like Bartók have used specific themes lifted whole from their folk-music origins. Certain staples of classical music are often used commercially (either in advertising or in movie soundtracks). In television commercials, several passages have become clichéd, particularly the opening of Richard Strauss' "Also sprach Zarathustra" (made famous in the film "") and the opening section "O Fortuna" of Carl Orff's "Carmina Burana"; other examples
2001: A Space Odyssey (film) "culturally, historically, or aesthetically significant" by the United States Library of Congress and selected for preservation in the National Film Registry. "Sight & Sound" magazine ranked "2001: A Space Odyssey" sixth in the top ten films of all time in its 2002 and 2012 critics' polls editions; it also tied for second place in the magazine's 2012 directors' poll. In 2010, it was named the greatest film of all time by "The Moving Arts Film Journal". In an African desert millions of years ago, a tribe of hominids is driven away from its water hole by a rival tribe. They