The movie is based on a novel. The main plot in the novel is fictional, but seems to make use of some existing background information. 1) The movie is based on a novel with the same name from John Katzenbach: “Hart’s War is a 2002 film about a fictional World War II prisoner of war based on the novel by John Katzenbach starring Bruce Willis, Colin Farrell and Terrence Howard. The film, directed by Gregory Hoblit, was shot at Barrandov Studios, Prague, Czech Republic and released on 15 February 2002.” Source and further information: http://en.wikipedia.org/wiki/Hart%27s_War 2) “John Katzenbach (aka Jon; born in 1950), is an author of popular fiction. Son of Nicholas Katzenbach, John has been a criminal court reporter for the Miami Herald and Miami News and a featured writer for the Herald’s Topic magazine. He is married to Madeleine Blais and they live in western Massachusetts.” Source and further information: http://en.wikipedia.org/wiki/John_Katzenbach 3) “Katzenbach’s father was in f