Legend of the Galactic Heroes: My Conquest Is the Sea of Stars(1988)

Ginga Eiyuu Densetsu: Waga Yuku wa Hoshi no Taikai

This movie, based on an anecdote of "Ginga Eiyuu Densetsu" written by novelist Tanaka Yoshiki, preludes the 110-episodes TV series by describing the first encounter between the ambitious young man Reinhard von Museal under the imperial flag and the passive Yang Wenli who serves a corrupting democracy. Set in an imaginative future, the story describes the first encounter between Yang and Reinhard and discusses how heroes are born.

(Source: Anime News Network)