Cool It is a 2010 documentary film directed by Ondi Timoner. It is based on the book Cool It: The Skeptical Environmentalist's Guide to Global Warming by Danish statistician Bjørn Lomborg. The film stars Lomborg, best known for authoring The Skeptical Environmentalist, and explores his views on global warming and criticisms of conventional mitigation approaches. It premiered in Canada at the 2010 Toronto International Film Festival and had a theatrical United States release on November 12, 2010.