Before you start production, you have characters you have created without actors in mind, then all of a sudden you've got actors. They bring an enormous amount in creating these characters, and creating the dynamics between the characters that you've written.
“By means of steam one can go from California to Japan in eighteen days.”
“I think male roles are generally much better written. So for actresses, we're always dealing with trying to inject a role with more truth than the writer possibly had in mind.”