This book provides the first comprehensive overview of international script development practices. Across 40 unique chapters, readers are guided through the key challenges, roles and cultures of script development, from the perspectives of creators of original works, those in consultative roles and those giving broader contextual case studies. The authors take us inside the writers' room, alongside the script editor, between development conversations, and outside the mainstream and into the experimental. With authors spanning upwards of 15 countries, and occupying an array of roles - including writer, script editor, producer, script consultant, executive, teacher and scholar, this is a truly international perspective on how script development functions (or otherwise) across media and platforms. Comprising four parts, the handbook guides readers behind the scenes of script development, exploring unique contexts, alternative approaches, specific production cultures and global contexts, drawing on interviews, archives, policy, case study research and the insider track. With its broad approach to a specialized practice, this handbook is for anyone who practices, teaches or studies screenwriting and screen production.