Davis Guggenheim is the director and producer responsible for two world-changing movies, Al Gore's “An Inconvenient Truth” and “Waiting for Superman,” a gripping documentary highlighting the unequal opportunities available in the public education system. “An Inconvenient Truth” dragged climate change into the public sphere in a huge way and is responsible for waking up a lot of people to the dangers of runaway global warming. “Waiting for Superman” tackles a problem that seems just as difficult as climate change to solve, both politically and technically — education. It follows kids in different districts around the country as they battle through the lottery system to try to score coveted spots at limited enrollment schools within the public system. When Guggenheim isn't making influential documentaries, he works as a commercial film director and producer.