What are the origins of Brazilian Jiu-Jitsu? Is it merely a by-product—a rebel offspring—of Judo? Opening Closed Guard: The Story Behind the Film by Robert Drysdale contains conclusions, analysis, and historical interpretations, as well as the story behind the documentary itself and the many challenges it faced along the way. It contains interviews, research articles pertaining to the history of Jiu-Jitsu in Brazil, as well as the author’s own take on the current state of BJJ and MMA. Finally, it is the story of the author rediscovering his love for Jiu-Jitsu in a completely new and unexpected way.