The challenge of screenwriting is to say much in little and then take half of that little out and still preserve an effect of leisure and natural movement.
When in doubt, have a man come through the door with a gun in his hand.
She jerked away from me like a startled fawn might, if I had a startled fawn and it jerked away from me.
He looked about as inconspicuous as a tarantula on a slice of angel food.
The moment a man sets his thoughts down on paper, however secretly, he is in a sense writing for publication.
Woe, woe, woe... in a little while we shall all be dead. Therefore let us behave as though we were dead already.