The document defines synergy as the combined effect of two or more agents or forces being greater than the sum of their individual effects. It provides examples of synergy across different media like games, DVDs, CDs, toys, posters, books and outlets. It then discusses how The Hunger Games film franchise benefited tremendously from synergy between the film, its marketing across social media and various tie-in products which led to its massive box office opening. In contrast, a low budget British independent film had less tie-ins and synergy opportunities due to its smaller budget, though it did have a DVD and website to promote it.