With Angelina Jolie's film "Unbroken" about Japan's brutal treatment of prisoners during World War II being released this month, Chinese filmmaker Li Ying figures his 2007 anti-militarist documentary "Yasukuni" has only gained in relevance.

The film, which had its British premiere last week, focuses on Tokyo's Yasukuni Shrine, which memorializes more than 2 million Japanese war dead, as well war criminals convicted after the war of inhumane treatment of prisoners of war.

Visits to the Shinto shrine by Japanese prime ministers, including Shinzo Abe, have infuriated China and South Korea, which say Japan has never properly apologized for the invasion and wartime occupation of its neighboring territories.