@marcr #SaveTheCat is pretty much industry standard. If taken as a guideline (instead of a prescription), it's a useful lens for analyzing and planning stories. And yes, you'll find parallels between STC and Hero's Journey ... and Harmon's #StoryCircle and "How to Write a Movie in 21 Days" and even the sequence of Tarot trumps (ha!), as all of these, one way or another, are seeking to make mythic story structure more approachable. Take what works and ignore the rest!