King Arthur is a film first released in the United States on June 28, 2004, dubbed as "The Untold True Story That Inspired The Legend" by Touchstone Pictures.
The makers of the film claim to present a historically accurate version of the Arthurian legends, supposedly inspired by new archaeological findings. The accuracy of these claims is subject to debate, but the film is unusual in representing Arthur as a Roman soldier rather than a medieval knight.
A historical approach to the Arthurian legends had already been showcased in film once - in Arthur of the Britons, a 1972-1973 British TV series, and King Arthur, The Young Warlord, a movie-length compilation of some of its episodes.