Why Yellowstone Was Enough in 2012 In 2012 (directed by Roland Emmerich), the Yellowstone super volcano eruption is more than just a massive visual spectacle it's a slow, civilization breaking event. While the movie shows explosive destruction, the real danger lies in what follows: volcanic ash blocking sunlight, global food supply collapse, and a sudden drop in temperatures known as a volcanic winter. Starring John Cusack, Amanda Peet, Chiwetel Ejiofor, and Woody Harrelson, 2012 imagines a chai