The amateur has no preconceived notions of how it should be done; the professional has: he’s gone to school, learned techniques, knows what will work – his choices, his selections, are usually better. The amateur has no selection: it’s a very pure thing. So the professional gets a little jealous while the amateur begins to pick up a few things. Somewhere in the course of the film they come together and aid each other: the professional takes purity from the amateur, and the amateur takes on a cer- tain amount of professionalism. The professionals set the pace for everyone else so that all actors function the same way on the set. That’s why I like to mix professionals with amateurs in my films: amateurs work amazingly hard. What professionals can give amateurs in the way of help, amateurs can give professionals in the way of inspiration. I think every single person in the world can act. They may not be Garbo, but they can empathize with a character. They don’t need any skill except for living. If he can make someone laugh, or feel emotion in life, he can do it on the screen.
:)