When preparing for a role, a month is a luxury. Sometimes you've maybe got two weeks before you start on something. So you have to learn how to do it quickly. And the longer you have a role, that it lives in your imagination, the more you're going to be able to contribute when you get on set. Because it's really about your subconscious having time to sit with the part, so you're out doing something and then something occurs to you, you know?