Question: For which ballet was this Soviet ballet dancer and choreographer, who portrayed the main character in the film Valentino, a director?
Sentence (from "Valentino (1977 film)"): The film is very loosely based on the life of Valentino as recounted in the book "Valentino, an Intimate Exposé of the Sheik", written by Chaw Mank and Brad Steiger.
Relevant evidence: No