Michael Moore's 2004 documentary "Fahrenheit 9/11" refers to Bradbury's novel and the September 11 attacks, emphasized by the film's tagline "The temperature where freedom burns". The film takes a critical look at the presidency of George W. Bush, the War on Terror, and its coverage in the news media, and became the highest grossing documentary of all time. Bradbury, a conservative, was upset by what he considered the appropriation of his title, and wanted the film renamed. Moore filmed a subsequent documentary about the election of Donald Trump called "Fahrenheit 11/9" in 2018.