"There's a moment in one scene of the new film where tears almost appear in his eye. These are crocodile tears, but for all those in the movie, and perhaps watching the movie itself, they'll see he is apparently moved -- and of course, he is. He can just do it. He can, as it were, turn it on. And I suppose for him, it's also a bit of a turn-on -- the pure exercise of power is what he's all about. That's the only thing he's interested in and the only thing that can satisfy him -- which makes him completely fascinating to play, because it is an evil soul."