A Tunnel to the Sun
1968
The Sands of Kurobe is a 1968 Japanese drama film directed by Kei Kumai. It is an adaptation of the novel The Sun of Kurobe (黒部の太陽; Kurobe no Taiyō) that dramatizes the construction of the massive Kurobe Dam, the tallest dam in Japan. The film was Japan's submission to the 41st Academy Awards for the Academy Award for Best Foreign Language Film, but was not accepted as a nominee. imdb.com