Entertainment Weekly gave the album a B rating, praising the song "Garbage Truck", while Rolling Stone gave a more mixed review, stating that the contributions of Beck and Broken Social Scene were not strong and that "the charm of those songs fades outside the film". Perpetua also felt that they were unnecessary, but were nice songs and contributed to the design of the comic world in the music. However, Chapman noted that he listened to the soundtrack before he watched the film and that it works in isolation from the film where other soundtracks do not, adding that it "plays out like a very strong, near perfect mix tape". He found that the previously released songs were "excellent [and] absolutely appropriate for the scenes they accompany, both lyrically and musically [...] and, as such, none of the [soundtrack] inclusions are superfluous to requirements."
