Henkan kōshōjin: Itsuka, Okinawa o torimodosu

本片是一部日本片，上映于2018-06-30，由柳川强导演，由井浦新/仲代达矢/户田菜穗主演。

剧情简介：In 2010, while covering the issue of the "secret agreement" at the Ministry of Foreign Affairs, the author came across diplomatic documents relating to the reversion of Okinawa and was particularly impressed by the handwritten documents of Kazuo Chiba, then Director of the North American First Division at the Ministry of Foreign Affairs, which, unlike ordinary bureaucrats, "stood out from the crowd and seemed unique". The name of Chiba subsequently appeared in a number of documents left by former Prime Minister Eisaku Sato's secretary, and the author became interested in finding out what kind of person he was.

外文名：返還交渉人 -いつか、沖縄を取り戻す-

地区：日本

导演：柳川强

演员：井浦新 / 仲代达矢 / 户田菜穗 / 尾美利德 / 中岛步 / 比留间彰 / 查尔斯·格洛弗​​ / Taeko Yoshida / Shinichi Tsuwa