Batman and Superman both sides of one coins, one is god-like being who represents the light while the other is a human who represents the darkness of humanity. Both are icons in there own right and both are how America portrays itself. But does The Dark Knight bring out an different side of The Man of Steel, I ask this question because whenever they are placed within comic pages or on screen, they both become an answer and question. Whether that is The Dark Knight Returns, Red Son, Kingdom Come, World's Finest, we see Superman constantly question his humanity when he's with Batman.
And now since Warner Brothers has announced a film with the two of them in it. Then does mean that Batman is one to bring Superman's different side.