A group of students from the Cosmo Academy are about to take their final exam: surviving for over fifty days in a derelict ship. But when they arrive, they discover that instead of ten students, there are eleven. One of them doesn't belong there...
Unfortunately the movie They Were Eleven is not yet available on HBO Max.
| Directing | Satoshi Dezaki | Director |
| Directing | Tsuneo Tominaga | Director |
| Camera | Nobuo Koyama | Director of Photography |
| Writing | Katsumi Koide | Screenplay |
| Writing | Toshiaki Imaizumi | Screenplay |
| Writing | Moto Hagio | Writer |
| Production | Minoru Kotoku | Producer |
| Production | Hidenori Taga | Executive Producer |
| Sound | Dan Oikawa | Music |
| Art | Junichi Higashi | Art Direction |
| Production | Shigekazu Ochiai | Executive Producer |
| Visual Effects | Kaori Yamada | Key Animation |
| Art | Ryutaro Nakamura | Storyboard Artist |
| Art | Tsuneo Tominaga | Storyboard Artist |
| Art | Satoshi Dezaki | Storyboard Artist |
| Visual Effects | Yoshimitsu Ohashi | Key Animation |
| Visual Effects | Setsuko Shibuichi | Key Animation |
| Visual Effects | Shinichi Suzuki | Key Animation |
