The Sea and Poison

is a 1986 Japanese film directed by Kei Kumai and based on a novel of the same name by Shusaku Endo. It tells the true story of downed American pilots in World War II who are vivisected by Japanese surgeons in medical experiments at Unit 731. The film has never been released on home video outside of Japan and has never been released with an English translation. Unofficial translations exist online and can be legally watched with an original Japanese DVD using computer software that allows custom subtitles. Cast Eiji Okuda as Suguro Ken Watanabe as Toda Takahiro Tamura as Professor Hashimoto Kyōko Kishida as Ohba, Head Nurse Mikio Narita as Shibata Shigeru Kōyama as Gondo Toshie Negishi as Ueda, Nurse Ken Nishida as Asai Masumi Okada as Hattori Noriko Sengoku as Old woman as Murai Masane Tsukayama as Miyasaka Awards 37th Berlin International Film Festival Jury Grand Prix 41st Mainichi Film Award Best Film