King Arthur (2004) is a Adventure, War, History, Action, Drama film that follows the story of the Arthurian legend, based on the 'Sarmatian hypothesis' which contends that the legend has a historical nucleus in the Sarmatian heavy cavalry troops stationed in Britain, and that the Roman-British military commander, Lucius Artorius Castus is the historical person behind the legend. Currently, you can watch King Arthur on Amazon Video, Apple TV Store, Google Play Movies, YouTube. Streaming availability may vary by country and platform over time. It has a user rating of 6.3 out of 10 from 2,915 votes. Fans of adventure movies may also want to explore similar titles below.