The subject is so vast that it demands a director up to the task. No stranger to activist movements, Kitchell created Berkeley in the Sixties, one of the defining protest films of its era, and the winner of many awards, including the the Best Documentary by the National Society of Film Critics. Undaunted by the amount of research required, the mountains of archival footage to unearth, the spokespersons and narrators—Ashley Judd, Meryl Streep and Isabelle Allende, among others—necessary to make a relevant case for the survival of planet Earth, Kitchell has succeeded brilliantly.