They wanted to cast the part as Batman, as opposed to casting it as Bruce Wayne.
You have to make Bruce Wayne work, because Batman is, for the most part, going to be a stunt guy, or it’s going to be somebody running around in a costume in long shot.
There were a lot of people at Warner Brothers who wanted to cast it with an action star.
You don’t need the martial arts expertise of, say, Steven Seagal or somebody like that, because you can fake all of that kind of stuff.