Question: Are both Bernardo Bertolucci and George Tzavellas film directors?
Sentence (from "George Tzavellas"): George Tzavellas, also rendered Giorgos Tzavellas, Yiorgos Tzavellas, or Yorgos Javellas (Greek: Γιώργος Τζαβέλλας , 1916, Athens – October 18, 1976), was a Greek film director, screenwriter, and playwright.
Relevant evidence: Yes