Ankoku gai jingi (1965)
Original title: 暗黒街仁義
Ankoku gai jingi is a 1965 Japanese-language crime movie directed by Yūsuke Watanabe, with a running time of 1h 38m. It stars Koji Tsuruta, Shigeru Amachi and Ryōhei Uchida.
A big American boss landed in Japan in search of funding sources. A lone wolf trying to stop it ends up fighting against his big brother's organization and emerging powers. A huge gangster story depicting a three-way turf war on a large scale.