Zack Snyder interviews Frank Miller

Miller: I was told Batman could never fire a gun. I was told by the editor with absolute conviction. So, I came up with an excuse for him to fire a rifle, even though it was just a grappling hook into the side of a building, but it was just to get that picture of him holding it. I don't like these absolute dicta.

Snyder:Well, it's cool because if you can create a scenario where Batman has to shoot a gun and someone says, "Well, Batman can't shoot a gun." And you're like, "Well, what should he do in this scenario then?" And then if someone says, "Well, don't put him in that scenario." I'm like, "Well, that's a weak character." You can't have a character where we're modifying this scenario because he can't exist in it. That's not realistic. Now we're just creating scenarios that his morality can work inside of, rather than the other way around.

Miller: Absolutely right, Zack. That's not creative.