People who have never done theatre before, and have only worked in front of a camera, would find it very difficult, I think, to know how to command a stage and work with the logistics of being on stage. They're very different. The theatre is quite tricky, actually.
There's different ways of getting into character. There's what's called 'the outside,' in which is finding the physicality of the character first. To give an example, in 'Gettin' Square' - Johnny Spitieri - that's how I found that character. I knew those people that I'd seen up at Kings Cross. I knew how they sounded.
Some people have heard of The Method, which originally goes back to Stanislavski... he gave you six major pointers whereby you became that character and tried to fool your mind psychologically. That's it in a nutshell. Daniel Day Lewis is an example of somebody like that who stays in character between takes.
In all honesty, if somebody asked me the secret of auditioning for Americans, I don't know. Often, I do what's called self-taping for America. I go over there quite a lot to sit in a room and do stuff in front of people. You feel like a performing monkey. It's bizarre.