Here's what started the phenomenon: the best seller, for over 15 years, that's been used by screenwriters around the world Blake Snyder tells all in this fast, funny and candid look inside the movie business. "Save the Cat" is just one of many ironclad rules for making your ideas more marketable and your script more satisfying, including: The four elements of every winning logline The seven immutable laws of screenplay physics The 10 genres that every movie ever made can be categorized by -- and why they're important to your script Why your Hero must serve your Idea Mastering the 15 Beats...