The official soundtrack to the 2009 hit comic book movie is not your typical collection of hard-and-heavy rock anthems and hip-hop party songs. With the exception of My Chemical Romance's amped-up cover of Bob Dylan's "Desolation Row," it is a sobering blend of standards from days past. Complementing the somber mood and flashback sequences throughout the film, songs like Dylan's "The Times They Are A'Changin'" and Billie Holiday's "You're My Thrill" recall several eras' worth of simpler values and/or affairs. Nat King Cole's classic "Unforgettable" juxtaposes that song's soulful sentiment with a hero's demise. Elsewhere on the soundtrack, the Philip Glass Ensemble's "Pruit Igoe & Prophecies" and Wagner's "Ride of the Valkyries" echo Tyler Bates's foreboding, apocalyptic original score.