On Screenwriting
A man sits down at a typewriter with some blank paper on which he types image-describing words, and at a certain point turns around and confronts some four or five hundred people, and trucks and food wagons, airplanes, horses, hotels, roads, cars, lights, all of which he has by some means, untraceable now in its complexity, evoked from nowhere and nothing. Oddly, he ends up with little power over these results of his imagination; they go their own way with not the slightest awareness that they owe their current incarnation to him.
ARTHUR MILLER