For anyone serious about writing.
I'd recommend taking a look at a book called The Writer's Journey by Christopher Vogler. It uses references from Star Wars (and other stories like Pulp Fiction, Titanic and the Lion King) in the book to show the flow of a story/screen play and how to set the story in motion regarding main characters, the mentor, the call to adventure, the reluctance to take the call, crossing the threshold... and other archetypes and processes involved.
Extremely helpful to aide you if you're able to find it.
*unsure why it rotated the image on me?