BEIJING, April 6 — Chinese film director Zhang Yimou and Bloomberg's Stephen Engle talk about the failure of the big budget Hollywood co-production The Great Wall and the reasons why China's box office slumped last year. — Bloomberg

Director Zhang Yimou (second from left) poses with cast members Pedro Pascal, Tian Jing and Matt Damon at the premiere of ‘The Great Wall’ in Los Angeles February 15, 2017. — Reuters pic