AllMovie

Also known as Gawain and the Green Knight, this British swashbuckler features Murray Head as the title character. That is, Murray is Sir Gawain; the Green Knight is played by Nigel Green (apropos casting, eh what?) Intending to decimate the knights of King Arthur's Round Table, the Green Knight challenges one and all to mortal combat. Gawain accepts the challenge, promptly decapitating the Green Knight. The latter, none the worse for wear, plants his head back on his body and invites Gawain to solve a riddle...or else. Now Gawain has one year to figure out a way to foil the Green Knight without losing his own head, which is not so easily replaced. Sir Gawain and the Green Knight was remade eleven years later by the same producers as Sword of the Valiant, with Miles O'Keeffe and Sean Connery in the principal roles.