- Country: Japan
- Genres: Animation, Comedy, Sci-Fi
- Release: 2014-06-01
- Director: Ayumu Watanabe
- Writers: Chûya Koyama , Makoto Ueda , Tomohiro Otoshi
- Language: Japanese
- Stars: Kinryuu Arimoto , Hiroaki Hirata , Kenichiro Ohashi , Akio Otsuka
- Runtime: 90 min
- Awards: N/A
- AKA: Uchuu kyoudai #0 , Uchuu Kyoudai: Number Zero , Space Brothers , 宇宙兄弟#0 (Japan) , Space Brothers (United Kingdom) , Space Brothers (United States of America)
- Plot:
Prequel to the TV anime series, revolving around the “origin of the dream.”
- IMDB:tt3407024
Space Brothers Cast · · · ALL
Ayumu Watanabe
Director
Hiroaki Hirata
Mutta Nanba (voice)
Kenichiro Ohashi
Hibito Nanba (voice)
Akio Otsuka
Brian Jay (voice)
Kinryuu Arimoto
Eddie Jay (voice)
Fumihiko Tachiki
Jason Butler (voice)
Mayumi Tanaka
Mayumi Nanba (Nanba's Mother) (voice)
Miyuki Sawashiro
Mutta Nanba (young) (voice)
Yuko Sanpei
Hibito Nanba (young) (voice)
Eiji Itou
Tetsutaro Tsurumi (voice)
Hiroshi Tsuchida
Damien Kweller (voice)
Kazuhiro Fusegawa
Uchikoshi (voice)
Masashi Sada
Dokonjo Tofu (voice)
Rintaro Nishi
Freddie Saturn (voice)
Shô Ryûzanji
Tadashi Hoshika (voice)
Taiten Kusunoki
Phillip Louis (voice)
Kenji Nomura
Takio Azuma (voice)