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 | Tsuneo Tominaga | Director |
| Directing | Satoshi Dezaki | Director |
| Camera | Nobuo Koyama | Director of Photography |
| Writing | Moto Hagio | Writer |
| Production | Hidenori Taga | Executive Producer |
| Art | Junichi Higashi | Art Direction |
| Writing | Katsumi Koide | Screenplay |
| Writing | Toshiaki Imaizumi | Screenplay |
| Production | Minoru Kotoku | Producer |
| Sound | Dan Oikawa | Music |
| Production | Shigekazu Ochiai | Executive Producer |
| Visual Effects | Kaori Yamada | Key Animation |
| Art | Tsuneo Tominaga | Storyboard Artist |
| Art | Satoshi Dezaki | Storyboard Artist |
| Art | Ryutaro Nakamura | Storyboard Artist |
| Visual Effects | Setsuko Shibuichi | Key Animation |
| Visual Effects | Yoshimitsu Ohashi | Key Animation |
| Visual Effects | Shinichi Suzuki | Key Animation |
