The past few years have featured such blockbusters as Super-Size Me, Fahrenheit 9/11, Sicko, March of the Penguins, and An Inconvenient Truth. And as news articles proclaim a new era in the history of documentary films, more and more new directors are making their first film a nonfiction one. But in addition to posing all of the usual challenges inherent to more standard filmmaking, documentaries also present unique...