ヤマトよ永遠に

The name of this movie is ヤマトよ永遠に released in 1980-08-01 and it's main theme is The Black Nebula Empire attacks Earth and threatens to blow up the planet with a bomb they placed on Earth if counter attacked. Earths hopes rest on the Yamato crew as they go to the Black Nebula Planet and try to find a way to difuse the bomb before it's too late..