Superheroes are the new gods, and they come with a vast mythology. The two main universes, Marvel and DC, are huge accumulations of concepts, ideas, and narrative content, close to unmanageable. When you have played, or want to play ‘Batman: Arkham Asylum’, like I have done, you might long for background on Arkham. The above movie by gametrailers furnishes it in a comprehensive manner.
SCHECHTER, HAROLD. 1980. The new gods: Psyche and symbol in popular art. Madison: Popular Press.