BEIJING, Sept. 18 (Xinhua) -- A new film depicting the atrocities of Japan's notorious Unit 731 during World War II opened in theaters across China on Thursday, coinciding with a significant anniversary in the nation's wartime history. The release of "Evil Unbound" fell on Sept. 18, the 94th anniversary of the September 18 Incident that marked the start of the Chinese People's War of Resistance against Japanese Aggression. This year also marks the 80th anniversary of the victory in China's war of resistance and the World Anti-Fascist War. The movie also opened Thursday in Australia and New Zealand, and is set to reach North American theaters on Friday. Unit 731, a top-secret biological and chemical warfare research base in Pingfang District of Harbin, capital of northeast China's Heilongjiang Province, became the nerve center for Japanese biological warfare in China and Southeast Asia during World War II.