Shangri-La (2002)

Original title: 金融破滅ニッポン 桃源郷の人々

Shangri-La follows the lives of a group of homeless people in Japan who run into a man who nearly commits suicide and decide to help him out of his financial troubles. Using their various ingenious resources they embark on a complex scheme to blackmail a crooked businessman, whose bankruptcy claim has put people out of work. It’s a fun romp as these seemingly homeless people manage to outsmart the very people who cast them from society.