"Oh, I remember on Dave, I’d written a bad draft. I was on page 150 and climbing and I had no money then. ... I went home and I said to my wife that I needed to write it again because I wasn’t satisfied. So we took out a loan—a second mortgage on the house—to finish the script and Mike Ovitz, who was a very powerful agent in Hollywood at the time was yelling at me to deliver the script to one of his very powerful clients ‘cause I was late. There was a huge amount of pressure. I literally threw away the first draft and started again from page one."
January 1, 1970
https://en.wikiquote.org/wiki/Dreams_on_Spec