Question: Which film - Feiyu Show or Anvil! The Story of Anvil - is a film about a Canadian heavy metal band that was directed by Sacha Gervasi?
{'answer': 'Anvil! The Story of Anvil', 'supporting_facts': [['Feiyu Show', 0], ['Anvil! The Story of Anvil', 0], ['Anvil! The Story of Anvil', 1], ['Anvil! The Story of Anvil', 2]]}