Uchuu Enban Dai-Sensou
Japanese title: 宇宙円盤大戦争
Alternative titles: The Great Battle of the Flying Saucers, The Great War of the Flying Saucers
Type: Movie
Source: Manga
Episodes: 1
Status: Finished Airing
Aired: Jul 21, 1975
Duration: 29 min
Rating: PG-13 - Teens 13 or older
Studios: Toei Animation
Producers: Dynamic Planning
Genres: Action, Romance
Themes: Mecha

The pilot movie of Grendizer. It is about Duke Fleed, a fugitive of the planet fleed, who was kicked out of his planet by the Armies of Vega. Fleed and the daughter of the king of Vega were in love before the war between their planets. The armies of Vega continue their fight with Duke Fleed. 

(Source: ANN)