Lust, Caution

(Chinese: Sè, Jiè) is a 2007 Chinese espionage thriller film directed by Taiwanese American director Ang Lee, based on the short story of the same name published in 1979 by Chinese author Eileen Chang. The story is mostly set in Hong Kong in 1938 and in Shanghai in 1942, when it was occupied by the Japanese Imperial Army and ruled by the puppet government led by Wang Jingwei. It depicts a group of Chinese university students from the Lingnan University who plot to assassinate a high-ranking special agent and recruiter of the puppet government using an attractive young woman to lure him into a trap.
With this film Lee won for the second time the Golden Lion Award at the Venice Film Festival [1]. The film adaption and the story are loosely based on events that took place during the Japanese occupation of Shanghai. (trailer)

The Second Sino-Japanese War (July 7, 1937 – September 9, 1945) was a military conflict fought between the Republic of China and the Empire of Japan. From 1937 to 1941, China fought Japan with some economic help from Germany (until 1938) and the Soviet Union (1937-1940). After the Japanese attack on Pearl Harbor, the war merged into the greater conflict of World War II as a major front in the Pacific Theatre. The Second Sino-Japanese War was the largest Asian war in the twentieth century.[8]

Although the two countries had fought intermittently since 1931, full-scale war started in earnest in 1937 and ended only with the surrender of Japan in 1945. The war was the result of a decades-long Japanese imperialist policy aiming to dominate China politically and militarily to secure its vast raw material reserves and other resources. At the same time, the rising tide of Chinese nationalism and notions of self determination stoked the coals of war. Before 1937, China and Japan fought in small, localized engagements in so-called "incidents". Yet the two sides, for a variety of reasons, refrained from fighting a total war. In 1931, the Japanese invasion of Manchuria by Imperial Japan's Kwantung Army followed the "Mukden Incident". The last of these incidents was the Marco Polo Bridge Incident of 1937, marking the beginning of full scale war between the two countries.[9] (wiki)