Harakiri (1962)

Harakiri is a Japanese jidaigeki (period-drama) film directed by Masaki Kobayashi. The story takes place between 1619 and 1630 during the Edo period and the reign of the Tokugawa shogunate. It tells the story of Hanshirō Tsugumo, a rōnin or warrior without a lord.

More at Wikipedia.