Purple Butterfly

Purple Butterfly Chinese pinyin Z Hdi is a 2003 Chinese film, directed by Lou Ye. It is Lous third film after Weekend Lover and Suzhou River. It stars Chinese mainland actors, Zhang Ziyi, Liu Ye and Li Bingbing, as well as Japanese actor Tru Nakamura. The film premiered on May 23, 2003 at the 2003 Cannes Film Festival, and was given a limited release in New York City the following year on November 26, 2004.

Cynthia Zhang Ziyi and a Japanese student, Itami Tru Nakamura, have fallen in love in Japanese controlled Manchukuo prior to the war when Itami is forced to return to Japan.Years later, in Shanghai, Szeto Liu Ye and Tang Yiling Li Bingbing have fallen in love. Cynthia has also returned to Shanghai now as a member of Purple Butterfly, a powerful resistance group against the Japanese occupation, led by Xie Ming Feng Yuanzheng. After a case of mistaken identity and a shootout at a railroad station that leaves Yiling dead, Szeto finds himself an unexpected pawn in the battle between former lovers Cynthia and Itami who has also come to Shanghai, now as a member of the Japanese secret police unit tasked with dismantling Purple Butterfly. ........

Source: Wikipedia