What goes into the making of a massive-budget Hollywood movie such as Transformers: Age of Extinction (2014)? Modest amounts of acting and writing combined with heavy doses of post-production CGI, to be sure. But profits have always driven the behemoths of the movie business, and the real action is in the realm of marketing. Culled from 355 YouTube fan videos and played out entirely on a single computer monitor, Transformers: The Premake follows an increasingly strange journey through the making of a modern blockbuster.