Ligeti's music is best known to the public not acquainted with 20th century classical music for its use in three films of Stanley Kubrick's, which gained him a world-wide audience. The to "" includes excerpts from four of his pieces: "Atmosphères", "Lux Aeterna", "Requiem" and "Aventures". "Atmosphères" is heard during the "Star Gate" sequence, with portions also heard in the Overture and Intermission. "Lux Aeterna" is heard in the moon-bus scene en route to the Tycho monolith. The "Kyrie" sequence of his "Requiem" is heard over the first three monolith encounters. An electronically altered version of "Aventures", unlisted in the film credits, is heard in the cryptic final scenes. The music was used, and in some cases modified, without Ligeti's knowledge, and without full copyright clearance. When he learned about the use of his music in the film, he "successfully sued for having had his music distorted", but settled out of court. Kubrick in return sought permission and compensated Ligeti for use of his music in later films.