Sansho the Bailiff

Sansho the Bailiff is a 1954 Japanese period film directed by Kenji Mizoguchi based on a 1915 short story of the same name by Mori Ōgai, which in turn was based on a sekkyō-bushi appearing in written form in the 17th century. It follows two aristocratic children who are sold into slavery.

Synopsis from Wikipedia, CC BY-SA 4.0. Everything below written here.

Poster by Daiei Motion Picture Company (大映株式会社, Daiei Kabushiki-gaisha), © 1954 (Public domain).