"I bought the Syd Field book on writing screenplays, and me, Phil, and a guy named Mike Varhol did exactly what was said in that book. I mean, exactly, right down to getting three-by-five file cards and writing each beat down and putting it on a bulletin board. We did every single thing like that. As a result, Big Adventure is extremely classical in its structure because we were literally doing it by the book. So on page thirty, Pee-wee’s bike gets stolen. On page sixty, it gets found. It’s a whole thing."
https://www.villagevoice.com/2016/03/15/pee-wees-big-friends...
I'd like to take your word for that, but numerous other insiders have said the opposite, and also noted a significant convergence around Snyder's precise timing breakdown since the book was published.
> The three act structure is, at the most basic level, just the series of beginning, middle, and end. Of course any movie has these sections by necessity
Traditional three act structure is more specific than that, it specified in broad terms what happens in each part, and, no, it's not fundamentally essential; there are other story forms, though they are rarely used in well-funded American feature films.
Writing a good movie is really, really challenging.
Not that I entirely disagree with you, but I think it's more analogous to say that Hollywood is in the business of making burgers. You expect certain structural elements in burgers: buns, centre, sauce. They're incredibly popular for a reason.
The problem comes when we say burgers are basically the superset of decent or nutritious cooking.
Just to be clear though, no one is sitting around talking about Snyder's beats or terminology. In the industry, the only terms you'll here from these books are discussions of the three act structure because that is so vital to this sort of material. All that said, I do think the books are a good starting point for someone who wants to think critically about story, but don't think that these are blueprints for Hollywood success. If they were, every screenwriter would be paid scale.