The audience is not going to sit still for a wonkfest," says Al Gore, keenly aware that, well, he'd be just the guy to give it to them. 

But An Inconvenient Truth is not a wonkfest. Sure, the movie - in which the two-term vice president of the United States warns that global warming is a profound threat - is full of charts, graphs and ominous statistics about rising carbon dioxide levels and melting ice caps.