Experience has taught me that you have to improve all the time-little bit by little bit-and not keeping starting everything from new.
To make films is as boring as watching paint dry - you usually have to do little tiny bits here and there. You go off waiting for lighting, you come back - the energy dies. You hope you can find someone who can keep it going.
One of the things I've always enjoyed is moving around and staying fit. Physicality is such a big part of being an actor, but it's also about stillness and silence.