Much better than an Oscar for Al Gore: an Oscar for Karl Hess. The anarcho-libertarian writer starred in the documentary Karl Hess: Toward Liberty, which won an Academy Award in 1981. I suppose it helped that Hess was an environmentalist too—the picture spends at least as much time exploring his interest in appropriate technology as it does expounding his views about government.
Side note: I last saw this movie in college, when one of the local film societies put it on a double bill with Anarchism in America. Looks like that one's online too. If I had the time, I'd try to find the scene where the filmmakers ask Ed Clark, then running for president on the Libertarian ticket, whether he's an anarchist. I've never seen a politician struggle so desperately to dodge a question.
[Via Freedom's Phoenix.]