Act Structure

Act structure is the large-scale shape of your story: how the screenplay divides into movements, each ending on a turn that makes the next movement inevitable. The classical model is three acts — setup (roughly the first quarter), confrontation (the middle half), resolution (the final quarter) — with act breaks at the moments your protagonist's situation changes irreversibly.

The three-act model persists not because executives are conservative but because audiences are wired for it: a promise, a complication, a payoff. Alternatives — four acts, five acts, the eight-sequence method — are refinements of the same physics, useful mostly for taming the middle. Act two is where scripts die; splitting it at the midpoint gives you two 25-page problems instead of one 50-page swamp.

What a professional reader actually checks: does something turn at the act breaks, or does the story just continue? Is the inciting incident early enough to make a promise worth keeping? Does the climax answer the question act one asked?

Structure is scored as its own dimension on our coverage scorecard. If it comes back soft, rebuild the beat sheet before touching dialogue — structural problems can't be polished away.