Moore won the 2002 Academy Award for Best Documentary Feature for "Bowling for Columbine", which examined the causes of the Columbine High School massacre and the overall gun culture of the United States. He also directed and produced "&lt;a href="Fahrenheit%209/11"&gt;Fahrenheit 9/11&lt;/a&gt;", a critical look at the presidency of George W. Bush and the War on Terror, which earned $119,194,771 to become the highest-grossing documentary at the American box office of all time. The film also won the Palme d'Or at the 2004 Cannes film festival. His documentary "Sicko", which examines health care in the United States, is one of the top ten highest-grossing documentaries . In September 2008, he released his first free movie on the internet, "Slacker Uprising", which documented his personal quest to encourage more Americans to vote in presidential elections. He has also written and starred in the TV shows "TV Nation", a satirical news-magazine television series, and "The Awful Truth", a satirical show. In 2018 he released his latest film, "&lt;a href="Fahrenheit%2011/9"&gt;Fahrenheit 11/9&lt;/a&gt;", a documentary about the 2016 United States presidential election and the subsequent presidency of Donald Trump.