And if you're a golfer and you watch a golf film and Matt Damon swing, and it's not great, then you're not going to believe in the golf story, you're not going to believe in the rest of the film. That's the whole movie, so if that swing looks like crap, the movie's crap.
The discipline of writing something down is the first step toward making it happen.
I don't know what DVD commentaries are about. I'd like to strangle the person who came up with that concept.

