Save the Cat! Story Structure Software 3.0 New User Interface: all 5 templates in one window, each expandable to full screen New Corkboard: Attach photos, PDFs, sound files, video files, spreadsheet, web page links Beats and the Board from an Oscar-nominated 2010 hit STC! 3.0 files are fully compatible between Windows, Mac, iPhone, and iPad versions. Windows 7, Windows XP, Windows Vista, Mac OS Version 10.6.0 or higher Chapter 3 and The Greenlight Checklist with 50 checkable items from "Save the Cat! Strikes Back"