Flags of Our Fathers is a 2006 American war drama film directed, co-produced, and scored by Clint Eastwood and written by William Broyles Jr. and Paul Haggis. It is based on the 2000 book of the same name written by James Bradley and Ron Powers about the 1945 Battle of Iwo Jima, the five Marines and one Navy corpsman who were involved in raising the flag on Iwo Jima, and the after effects of that event on their lives. Taken from the American viewpoint of the Battle of Iwo Jima, the film is a companion piece to Eastwood's Letters from Iwo Jima, which depicts the same battle from the Japanese viewpoint; the two films were shot back to back.

The film was released on October 20, 2006. Although it was a box office bomb, only grossing $65.9 million against a $90 million budget, the film received favorable reviews from critics. The companion film Letters from Iwo Jima was released in Japan on December 9, 2006, and in the United States on December 20, 2006, grossing slightly more than Flags of Our Fathers and was deemed the superior film by critics.