 Because the film is based on different comic book stories (written by Frank Miller), each composer was assigned to score a different story.Revell scored the music to "The Hard Goodbye" (Rodriguez co-scored for tracks four, six and eight); Debney scored "The Big Fat Kill" (Rodriguez co-scored tracks eleven and twelve); Rodriguez scored "That Yellow Bastard" as well as the opening credits sequence and the first track in the end credits.The song featured in the trailers and television spots was an instrumental version of the song "Cells" by The Servant and briefly appeared in the movie as a sample.