Hart's War is a 2002 American war drama film about a World War II prisoner of war (POW) camp based on the novel by John Katzenbach. It stars Bruce Willis as Col. William McNamara and Colin Farrell as Lt. Thomas Hart. The film co-stars Terrence Howard, Cole Hauser, and Marcel Iureş. Directed by Gregory Hoblit, the film was shot at Barrandov Studios in Prague, and released on February 15, 2002. The film earned mixed reviews, grossing $33.1 million against its $70 million budget.

John Katzenbach is an American author of popular fiction. Son of Nicholas Katzenbach, former United States Attorney General, Katzenbach worked as a criminal court reporter for the Miami Herald and Miami News and as a featured writer for the Herald's Tropic magazine. He is married to Madeleine Blais, and they live in western Massachusetts.