The plot of his illegitimate son Mordred to gain the throne, and Guinevere's growing attachment to Sir Lancelot, threatens to topple King Arthur and destroy his "round table" of knights.
Richard Harris
as King Arthur
Vanessa Redgrave
as Guenevere
Franco Nero
as Lancelot Du Lac
David Hemmings
as Mordred
Lionel Jeffries
as King Pellinore
Laurence Naismith
as Merlyn
Pierre Olaf
as Dap
Estelle Winwood
as Lady Clarinda
Gary Marshal
as Sir Lionel
Anthony Rogers
as Sir Dinadan
Peter Bromilow
as Sir Sagramore
Sue Casey
as Lady Sybil
