A structural approach to screenwriting requires patience and discipline, but the rewards are great. You might find if you spend three weeks hammering out your story, the actual screenwriting will take only a week.
Once you’ve got your character – who by then hopefully has a name – what often helps is to do some daydreaming.
The pages are still blank, but there is a miraculous feeling of the words being there, written in invisible ink and clamoring to become visible.
The process of writing has something infinite about it. Even though it is interrupted each night, it is one single notation.
Loafing is the most productive part of a writer's life.
This great interview from the WGAW gets into the mind of screenwriter Frank Pierson, the writer of such greats as Dog Day Afternoon, A Star is Born, and Cool Hand Luke.
This great interview from the WGA talks with Ben Ripley about the writing of Source Code. Ben wrote the script on spec and had to complete a few full rewrites before getting to the structure you see on screen.