After chiming in on Batkid and Ben Affleck taking over Batman in Batman Vs. Superman earlier today, Christian Bale explained the origin of his gravely voice in Christopher Nolan's Dark Knight trilogy (Batman Begins, The Dark Knight and The Dark Knight Rises). Here's what the actor had to say about his first audition for the iconic role, and how his wife disapproved of the voice.

"I got there. They put me in Val Kilmer's suit. It didn't even fit properly, and I stood in it and I went 'I feel like an idiot.' What kind of guy walks around, dressed like a bat? And is he then going to go 'Hello, how are you? Just ignore that I'm dressed as a bat.' Of course, he's meant to be doing this. If you look at the history of the guy and the pain that he went through. I went 'I can't do this in a normal voice. I have to become a beast in order to sell this to myself.' I went home that evening, and my wife said, 'How'd it go?' I went, 'I kind of did this.' And I showed her, and she went, 'Oh, you f---ed that one up, didn't you?' Thank God they went for it."
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He also said that he wishes Ben Affleck the best in his portrayal of The Dark Knight in Batman Vs. Superman, while also bringing up the Batkid once more.

"[The voice] ain't for everybody. Ben's obviously going to have to do his own thing, but it was the only way that I could find how to get into that and to justify wearing the fricking Batsuit. Otherwise, he's just loopy beyond belief. He's loopy, but he's loopy with a method to his madness. I wish [Affleck] the best. You look at this kid, Batkid.... That gives the whole point. It doesn't matter which actor is playing him. He's a symbol. He's so much bigger than any actor. That's all. This little kid, he doesn't really care which actor's playing him. It's the symbol of the whole thing, and that's what makes the character so fantastic. I look forward to seeing what Ben will do with it."