Fahrenheit 9/11 is a 2004 American documentary film directed and written by, and starring filmmaker, director, political commentator and activist Michael Moore. The subjects of the film are the presidency of George W. Bush, the Iraq War, and the media's coverage of the war. In the film, Moore claims that American corporate media were cheerleaders for the 2003 invasion of Iraq, and did not provide an accurate or objective analysis of the rationale for the war and the resulting casualties there.

A documentary film or documentary is a non-fictional motion picture intended to "document reality, primarily for instruction, education or maintaining a historical record". Bill Nichols has characterized the documentary in terms of "a filmmaking practice, a cinematic tradition, and mode of audience reception [that remains] a practice without clear boundaries".