A great quote from a great screenwriter via Go Into The Story my favorite new blog:
“You must write everyday. Free yourself. Free association. An hour alone a day. Blind writing. Write in the dark. Don't think about what it is you're writing. Just put a piece of paper in the typewriter, take your clothes off and go! No destination… pay it no attention… it's pure unconscious exercise. Pages of it. Keep it up until embarrassment disappears. Eliminate resistance. Look at it in the morning. Amazing sometimes. Most of it won't make any sense. But there'll always be a small kernel of truth that relates to what you're working on at the time. You won't even know you created it. It will appear, and it is yours. Pure gold, a product of that pure part of you that does not know how to resist.”
— Alvin Sargent (Paper Moon, Julia, Ordinary People)