There's no real rules about what you do [while directing]; it's just you just use your instincts as to the pacing of a film and what is repetitive and what is the minimum amount you can get away with to tell the story, that scene didn't make it in.
Peter JacksonWhen you're casting a movie and when you're shooting a film, the eyes are the most important feature of any performer, really. Any great actor literally knows exactly how to use their eyes, and even as a filmmaker I love shooting huge close-ups because it's those eyes that mean so much to me.
Peter Jackson