The journey of making a film can sometimes be as dramatic as the film itself. Meet several filmmakers currently on that odyssey. Michael Browns film Dark Canyon chronicles the incredible story of blind kayaker Erik Weihenmayer paddling down the Grand Canyon. Christi Cooper is shooting a film about a group of children suing the federal government over climate change. And Pete McBride is chronicling the arduous transect of the Grand Canyon he completed with Kevin Fedarko.