Fahrenheit 9/11 (2004)

Michael Moore's Fahrenheit 9/11 remains the most politically volatile documentary ever made, grossing $222 million to become the highest-grossing documentary of all time. The film explicitly attacks the Bush administration's response to 9/11 and the Iraq War, and its release in an election year transformed it into a partisan flashpoint. Disney’s refusal to distribute it and organized boycotts by conservative groups underscore its controversial impact. By outperforming The Interview in both box office and cultural influence, Fahrenheit 9/11 proved documentaries could be blockbuster political events, paving the way for the partisan documentary era while facing accusations of propaganda from the right.