My first exposure to 'O Fortuna' (the opening movement) was in a television commercial for Nescafe instant coffee. The paper seal of the coffee jar was pulled back slowly to the strains of 'O Fortuna, velut Luna…'. I read that 'O Fortuna' is being used in a TV advertisement for Old Spice in the United Kingdom.
More recently, Carmina Burana has been used in the film "Excalibur" and Oliver Stone's "The Doors" and in countless movie trailers including "Glory".