Gustavo Santaolalla (Brokeback Mountain, Babel, 21 Grams, The Book of Life, The Motorcycle Diaries) is set to compose the music for the upcoming Spanish Amazon original series El Cid. The show is created by José Velasco and stars Jaime Lorente as Rodrigo Díaz de Vivar. The drama tells the story of the legendary medieval war hero, whose deeds inspired one of the most important of medieval Spanish epic poems, El Cantar de Mio Cid. Adolfo Martínez serves as the lead director.