There are movies where actors aren't characters but movie stars, being cool beyond belief throughout the whole movie. That is what it is. And we reveal ourselves when we act, very often without noticing. But if I can manage to do a character without showing anything of myself, then that's the ultimate goal for me. No leakage.
Christian Bale'Batman' took 10 months to film, and by the time I stopped working on it, it took a long time before my English accent came out again. I was actually having to try for it.
Christian Bale