Music in IB

Tarantino originally wanted Ennio Morricone to compose the soundtrack for the film. Morricone was unable to, because the sped-up production schedule of the film conflicted with his own work. However, Tarantino did use eight tracks composed by Morricone in the film, with four of them included on the CD.

The opening theme is taken from the folk ballad "The Green Leaves of Summer", which was composed by Dimitri Tiomkin and Paul Francis Webster. The soundtrack uses a variety of music genres, including spaghetti western, R&B. This is the first of Tarantino's soundtracks that does not include dialogue excerpts from the film. The soundtrack was released on August 18, 2009.

1. "The Green Leaves of Summer" - Nick Perito
2. "The Verdict (La Condanna)" - Ennio Morricone
3. "White Lightning" - Charles Bernstein
4. "Slaughter" - Billy Preston
5. "The Surrender" - Ennio Morricone
6. "One Sliver Dollar" - Gianni Ferrio
7. "Davon geht die Welt nicht unter" - Zarah Leander
8. "The Man with the Big Sombrero" - Samantha Shelton & Michael Andrew
9. "Ich wollt, ich wär ein Huhn" - Lilian Harvey & Willy Fritsch
10. "Main Theme from Dark of the Sun" - Jacques Loussier
11. "Cat People" - David Bowie
12. "Tiger Tank" - Lalo Schifrin
13. "Un Amico" - Ennio Morricone
14. "Rabbia e Tarantella" - Ennio Morroicone