Formulaic screenwriting examined

Hollywood and Blake Snyder’s screenwriting book, Save the Cat! - Slate Magazine

I knew of Syd Field's and Robert McKee's promotion of "3 act structure"for movies, but did not know of Snyder's book which sets out a much more detailed formula for movies.  This article argues that his book is being followed by most blockbuster movies these days, which makes for a tiresome sameness.