8 Billion Angels

Ever since director Davis Guggenheim's nonfiction distillation of former American Vice President Al Gore's deeply personal slideshow about the dangers of global warming, 2006's An Inconvenient Truth, galvanized viewers en route to racking up $50 million in the worldwide box office and two Oscar victories, environmental documentaries have had to grapple with its enormous cultural footprint. Previously seen as a niche market cinematically speaking, environmentalism has now gone mainstream.