Samurai III: Duel on Ganryu Island is the closing film of Inagaki's Samurai trilogy, the story of Musashi Miyamoto (Mifune). It is one of the best samurai films on its own and has the advantage of having the characters' history established in the first two films of the trilogy. This film abounds in good characters: Musashi's two disciples, a young boy and a horse trader, who exchange good natured barbs and loyally support Musashi; the two women in Musashi's life, good girl Otsu and bad girl Akemi; the brigand leader and his henchman, who was formerly Akemi's stepfather; and of course, Musashi's nemesis, Kojiro Sasaki, who is outstanding in both this film and Samurai II. Kojiro is actually a more interesting character than Musashi and reminds me of Tatsuya Nakadai's performance in Sword of Doom. The climactic duel on the beach with the rising sun in the background is amazing. Side note: This film has four of Kurosawa's Seven Samurai actors: Mifune, Shimura, Kato and Chiaki. See the whole trilogy.