Filmmaker Davis Guggenheim may be best known for the 2006 documentary that won him an Academy Award, 'An Inconvenient Truth', although a lot of people seem to associate that film solely with Al Gore. More recently, Guggenheim directed a feature film, Gracie, based on the high-school experiences of his wife, Elizabeth Shue, and It Might Get Loud, a documentary about the electric guitar with a focus on Jimmy Page, Jack White and The Edge.

Davis's most recent documentary feature, 'Waiting for "Superman' ,opens today (read our review). Like An Inconvenient Truth, it's an unabashed call to action, this time about the problems with America's public education system. The film focuses on five children who are not being served well by this system, and are hoping that "lotteries" for charter schools with bring them some help. Most are in inner-city public schools; one is having difficulties with her school in a California suburb. Davis notes at the beginning of the film that his solution for his own kids was to put them in private schools, and that's part of the problem, too.

Cinematical sat down with Davis earlier this month in Austin to talk about his film, the issues he chose to address and other related topics.