Colin Firth: I didn't find it easy at all. Tom was part of the process of judging it, but he can't get into my larynx and help me achieve the technique. But it's something you do every time you act. If you're playing someone who's got marital problems, you must play someone who's trying not to have marital problems. So, you've got to get into the problem first. If you're playing someone who's impeded by fear, or shyness, or has whatever dysfunction your character might have, you have to achieve the dysfunction first, imaginatively, in order to play someone who is trying to negotiate their way out of it.