Lone Wolf and Cub: Sword of Vengeance was released in Japan on 15 January 1972.
Based on the manga series created by Kazuo Koike and Goseki Kojima in 1970 (and not released in the US until 1987), Tomisaburo Wakayama had wanted to make a film version as early as 1971 and Kazuo Koike agreed to write the screenplay.
5 more films followed (with 3 more released in 1972).
Lone Wolf and Cub: Sword of Vengeance was released in the US in August 1973.














