If we were really true to the story, I would be an invulnerable alien. But I'm not, I'm an actor. Superman is an American icon. Whether it's an American role or not, I can't be sure. Superman stands for something very universal. He was certainly raised in America but he himself is not necessarily an American, because he's come from a place very far away. He is very different and therefore all the more beautiful when he tries to do so much for all of us, who are totally different from him.