The King Arthur legend has been adapted many times into many movies, though usually they focus on certain facets of the unwieldy tale.
Taking place centuries earlier than the usual Arthurian movies do (King Arthur is set in the infancy of the Medieval era while most people's benchmark, Excalibur, takes place at the height of the Age of Chivalry), this one focuses more on war and politics.
Although the characters sometimes seem a bit remote and aloof -- nearly everyone has his or her own personal turmoil to handle or political agenda to advance -- and the storytelling drags in the first hour, "King Arthur" makes an intriguing companion piece to some of the other screen interpretations of the legend, such as director John Boorman's opulent "Excalibur," which portrayed Camelot as a place ripe with sorcery and eroticism, and the underrated "First Knight," another revisionist take on the story, which starred Julia Ormond as a feisty Guinevere torn between Sean Connery's Arthur and Richard Gere's Lancelot.
I grew up on movies about King Arthur, Guinevere, Lancelot and the rest off the knights from the 1953 film “Knights of the Round Table,” “Prince Valiant,” “A Connecticut Yankee in King Arthur’s Court,” and “Camelot” to John Borman’s 1981 sword and sorcery fest, “Excalibur.”
And another problem is that John Boorman's Excalibur is, for me, the quintessential Arthurian movie.
The tradition was perpetuated in the 20th century by T.H. White (The Once and Future King), Mary Stewart (The Crystal Cave and its several sequels), Marion Zimmer Bradley (The Mists of Avalon), and, of course, by countless cinematic adaptations, including Robert Bresson's Lancelot du lac, John Boorman's Excalibur, Jerry Zucker's First Knight, and Monty Python and the Holy Grail.