I think GO's past it, whereas someone like Christian Bale is perfect.Christian Bale (loved him in Batman Begins)? Thoughts?
Check out his performance in The Machinist. If you want to see gaunt, you've got it right there.
I don't have a pre-conceived notion of what Bale is yet...
With an actor like Harrison, however, you've seen him in so many movies that he is locked-in in your mind as to how he will act. Or there are those 1-off movies like GO has done (5th element) where no matter what else he has done, you picture that movie when you think of him.
Bale differs in that the time we have seen him on the big screen, he's played goodies (batman), baddies (american psycho) and ambiguous characters (the machinist, the prestige) - but I'm not locked into how I think he will act. Quite frankly most of his performances have surprised me. He changes physically too. He's been buffed up in movies, and then rake thin in others.