Can you change the world with a documentary film? Louie Psihoyos, director of the Oscar-winning The Cove believes that you can. He believes that films can be “weapons of mass construction” helping reach lots of people and persuade them we need a greener, healthier future. He told Chris Cummins...

Nalleli Cobo grew up just 9 metres from a oil-drilling site in University Park, a low-income, majority-Latino neighborhood in Los Angeles. A smell like rotten eggs wafted over her house that was so nauseating that her family had to keep the windows closed at all times. And people, including...