After Revenant … Leonardo DiCaprio stars as eco-warrior in climate battle

Obama and the pope feature in documentary, Before the Flood, that hopes to influence presidential electionHe struggled through the frozen wastes of North America in his Oscar-winning performance in The Revenant. Now Leonardo DiCaprio is starring in a different role – taking his powerful new eco-documentary to the White House, in the hope it can help restart President Obama’s battle against global warming.It’s an issue of importance to both men. Obama, who appears in the documen