Q:I am a movie director and I just received the following movie plot. Could you help me answer this question? If not, let me know by writing "Not answerable". Plot title: El Cid: The Legend Movie plot: The story of a boy who becomes a man, a man who becomes a hero, and a hero that finally converts into a legend: the legend of Rodrigo de Vivar; better known as El Cid.Rodrigo is the perfect candidate for hero: a handsome, well-humored, brave young man with a brilliant future lying before him. Son of a Castillian Nobleman, he combines his royal upbringing and his friendship with the King's son and heir Sancho with clandestine visits to his beloved Gimena, the daughter of the Duke of Gormaz, who has zealously forbidden their courtship.But upon King Fernando's death, Rodrigo finds himself in a plot-laden world that will put an end to Sancho's life and crown his brother "Prince Alfonso," king. Suddenly Rodrigo loses everything he had so easily come-by: his best friend, his beloved Gimena, his honor... and on top of all this he is unjustly exiled from Castilla.Far from home, in hostile terrain, Rodrigo together with a few good men and the support of the Arab prince Al-Mutamin, launches a passionate, unforgettable, action-packed adventure, recuperating Castillian territories and waging war against the newly crowned King's bitter enemy, the dreaded Ben Yussuff, who has sworn to conquer the peninsula.In his quest to receive King Alfonso's pardon, recuperate his position, honor and his beloved Gimena, Rodrigo discovers universal respect for friendship, love and honour. My question: who is the legend in this story?
A:
Rodrigo de vivar is the legend in this story.