This film has Toei Animation's highest production budget to date, at over 30 million US dollars.
The film is based on the manga series created and illustrated by Leiji Matusmoto.
This made more money in France and Italy than it did in its native Japan.
In previous "Harlock" stories, Tochiro Oyama's love was towards the Space Pirate Queen Emeraldas. In this story, Oyama's affection is to the alien Mime.
This is the only incarnation of the Harlock mythos in which Tochiro Oyama is not the architect of the battleship Arcadia.