Clive Owen plays Arthur, the Roman commander, in the 2004 film King Arthur.
Directed by Antoine Fuqua, King Arthur presents a historically styled version of the Arthurian story. Its central character is a Roman officer serving in Britain during the final years of Roman rule. The film imagines Arthur and his knights as Sarmatian cavalrymen stationed at a frontier fort, rather than as figures in a conventionally medieval court.
The movie includes Lancelot, Gawain, Galahad, Tristan, Bors and Dagonet among Arthur’s followers. It also features Guinevere as a warrior associated with the native Britons. The plot is inspired partly by the Sarmatian theory proposed by some writers, though the film’s historical reconstruction is fictionalized.
This Arthur is not the same character as the Grail knight in medieval romances, and the movie does not adapt one single canonical Grail quest. Its connection to the topic comes from its reinterpretation of the Arthurian world and its famous knights.