Sinking of Japan (日本沈没, Nihon Chinbotsu ) is a 2006 Japanese disaster movie directed by Shinji Higuchi. It’s a remake of a 1973 film which itself was an adaptation of a novel by Sakyo Komatsu. Both movies and the novel have different English titles but it’s the same in Japanese.
The 2006 film starred Tsuyoshi Kusanagi, Kou Shibasaki, Etsushi Toyokawa, Mao Daichi and Mitsuhiro Oikawa etc. More details on cast and crew at end of the post.
The story is about Japan “sinking” into the sea because of tectonic plate motions. And time is running out for the Japanese people as volcanic eruptions, earthquakes and tsunamis begin to devour the country.