The standalone film Space Brothers #0, a prequel to the acclaimed TV series, is now streaming on HIDIVE with both English dub and subtitle options. The movie delves into the "origin of the dream" that inspired the main characters, offering a self-contained story set within the beloved franchise.

Produced by A-1 Pictures, known for their work on series like Sword Art Online and Your Lie in April, Space Brothers #0 maintains the grounded, inspirational tone of its predecessor. The film follows Mutta and Hibito Nanba as they make a pact to both reach space, exploring the childhood events that shaped their lifelong ambitions.

With a MAL score of 7.57, the film offers a satisfying side story for existing fans and an introduction to the grounded, character-driven sci-fi of the Space Brothers universe.