What Makes a Great Screenplay?

Shan miller asks, what makes a great screen play? I think you know, well, there's thee's the million answer to that. But i take something that always makes the mark of a really great screen play is a great final scene. And such a beautiful light lasts even just the last line. That's what always like makes a classic. It's interesting coas a name dropped on him, but i was talking to tarantina the other weekyou friend, you might know auncle tarantina. He sai tat, he doesn't really do that. He starts off, he writes half the script, and then the second half kind of dictates itself.