It is no secret that Leonardo DiCaprio is passionate about climate change and that is why his latest project is about just that. The Revenant star, who once told Rolling Stone that he is “consumed” by the topic, has been working on his documentary, Before the Flood, for the past two years and it was finally revealed on the big screen this month when it premiered at Toronto International Film Festival on September 9.

If DiCaprio’s involvement in the film doesn’t give you confidence in it’s success, it is directed by Academy Award winning filmmaker Fisher Stevens, known for The Cove, and executive-produced by Hollywood royalty Martin Scorsese. It will follow DiCaprio as an UN Ambassador of Peace who travels the globe exposing the people, places and animals that have been hit the hardest by climate change. The film uncovers the ways in which climate change has had an effect on places such as Canada, Florida, Beijing and Indonesia and has guest appearances from US President Barack Obama and meteorologist and astronaut Piers Sellers.

Stevens spoke about their journey: “For two and a half years we went on a journey to learn about the effects of climate change. How far it has gone, why there are still people denying it, and whether it is too late to do anything about it,” he said. “We’re extremely proud that National Geographic is helping us bring this odyssey to the world.”

Before the Flood will hit theatres in New York and Los Angeles on October 21 and will air on The National Geographic Channel in 171 countries and 45 languages on October 30.

Erin Smith, Correspondent (Film)