The Viper Brothers: Prison Gang 13

Original title: まむしの兄弟　懲役十三回

Directed by Sadao Nakajima

Part 3 in a long running (8+1 films) action/comedy/melodrama series about a pair of short tempered, amoral, but not evil chinpira (Bunta Sugawara and Tamio Kawachi) thinking too big of themselves.