This document discusses the use of transmedia storytelling across multiple platforms and mediums including film, television, games, books, comics and more. It notes how transmedia can be used to tell stories, develop concepts, rehearse with actors, build audiences, market and promote, and develop new revenue streams. It provides examples of how specific films, TV shows and brands have utilized transmedia storytelling and discusses factors like market conditions, audience consumption habits and technological advancements that have enabled the growth of transmedia.