This article appears in theOxford Handbook of New Audiovisual Aestheticsedited by John Richardson, Claudia Gorbman, and Carol Vernallis. The most successful superheroes of modern cinema are Superman and Batman. This chapter considers the changes wrought by digital technology in their cinematic construction and the impact on their music. The relationship between action, heroic theme, and the iconography of the superhero demonstrates a significant shift in how thematic music is employed in the more recentBatmanandSupermanfilms. This chapter contrasts musical and visual construction of the title characters inSuperman(Richard Donner, 1978) andBatman(Tim Burton, 1989) with the treatment of the same characters inBatman Begins(Christopher Nolan, 2005) andSuperman Returns(Bryan Singer, 2006). The problem of superheroic action and the musical solutions that analog films employed to address the limitations on representing the superheroes’ abilities is then contrasted with the subsequent decoupling of heroic action and musical theme in the later films, in which digital technology allows more convincing presentation of superheroic powers.