“A lot of people have approached Superman in a lot of different ways. I only know the way that has worked for us that’s what I know how to do,” Nolan said, emphasizing the idea that Batman exists in a world where he is the only superhero and a similar approach to the Man of Steel would assure the integrity needed for the film. “Each serves to the internal logic of the story. They have nothing to do with each other.”
Nolan and Goyer, a key collaborator on both Batman films, were at a story impasse on the third Batman film (which is now picking up steam as well) when, as a distraction, Goyer gave the filmmaker a daydream version of how he would tackle a story about the last son of Krypton.
“He basically told me, ‘I have this thought about how you would approach Superman,’” Nolan recalled. “I immediately got it, loved it and thought: That is a way of approaching the story I’ve never seen before that makes it incredibly exciting. I wanted to get Emma and I involved in shepherding the project right away and getting it to the studio and getting it going in an exciting way.”
Goyer is now writing the screenplay and Nolan is keeping it close to the vest.
It won't be long until we realize the entire DC Comics universe is taking place inside Christopher Nolan's head, imagined as he stares at a snowglobe of Gotham City. Which I'm fine with, if it means we avoid there being anything resembling another Superman IV.