A new trailer for King Arthur: Legend of the Sword has arrived--and it's pretty intense.Sons of Anarchy actor Charlie Hunnam plays the lead role in the movie, which is described as an "iconoclastic take on the classic Excalibur myth." The film follows Arthur "from the streets to the throne," with the story involving Arthur reclaiming the throne after his father, played by Star Trek's Eric Bana, is murdered.Here is the official plot description: "When the child Arthur's father is murdered, Vortigern (Jude Law), Arthur's uncle, seizes the crown.