An Inconvenient Truth (2006).
A very good film I think with some real eye openers, especially about Antartica and the North Pole. Leaves you with some mixed feelings though about the future of our planet and what we are all doing to it. Al Gore is a good man in my opinion and should have been president. I think the whole world would have benefited from that.
The Melissa Etheridge song: "I need to Wake up" is great and the end titles have been done quite well to leave you with some positive things to take away.
Good documentary and certainly worthy of the oscars it got.