Trailer: DiCaprio’s Documentary “Before the Flood”

National Geographic has unveiled the trailer for “Before The Flood,” the new documentary produced and narrated by Leonardo DiCaprio that will have a theatrical run next month followed by a global TV airing just over a week later.

DiCaprio travels the globe to talk with politicians, scientists, activists and the likes of President Obama and Pope Francis about climate change. Fisher Stevens (“The Cove”) helms the project which will get an Oscar-qualifying run in Los Angeles and New York starting October 21st.