This document discusses the three-act structure used in classic Hollywood film scripts. It begins with an overview of Act 1 which establishes the main characters, settings, conflicts and the protagonist's goal. Act 2 develops obstacles that impede the protagonist's goal and develops the characters. Act 3 contains the climax and resolution, where the goal is achieved and subplots are resolved. The document provides details on developing titles, backstories, subplots and considering the medium of TV, film or mini-series when writing scripts.