I think it's probably honest to say that there's a certain powerful stillness that I remember admiring tremendously as I grew up. And that would be Spencer Tracy... and Bogart and that particular approach to the work. The stillness, the economy, the grace of that work, so they would have been then, my heroes on the screen.
Remember this practical piece of advice: Never come into the theatre with mud on your feet. Leave your dust and dirt outside. Check your little worries, squabbles, petty difficulties with your outside clothing -- all the things that ruin your life and draw your attention away from your art -- at the door.