Blood Brothers (2007 Film)
Blood Brothers (Chinese: Tian tang kou / 天堂口) is a 2007 crime drama film directed by Alexi Tan. Set in 1930s Shanghai, the narrative follows three friends from the countryside who arrive in the city seeking fortune, only to become entangled in the dangerous world of organized crime.

Plot
The story centers on Fung (Daniel Wu), Kang (Liu Ye), and Hu (Tony Yang), who leave their rural home for the opportunities of Shanghai. Their aspirations lead them to Club Paradise, where they encounter the powerful mob boss Hong (Sun Honglei). As Kang rises within the ranks of the local triad, his moral trajectory diverges from that of Fung and Hu, who struggle with the inherent violence of their new environment. The tension escalates when Fung develops feelings for Lulu (Shu Qi), a nightclub singer involved with both the boss and his associate, Mark (Chang Chen). The conflict eventually forces the friends into a violent confrontation.
Production and Release
The film was written by Alexi Tan, Dan Jiang, and Tony Chan. It features a multilingual script including Mandarin, English, and French. The film was released on August 16, 2007, and was a collaborative production involving China, Taiwan, and Hong Kong. In 2008, it was featured in the Panorama section of the 10th Deauville Asian Film Festival.