Die eiserne Festung
- Tausaga: 1977
- Atunuʻu: East Germany
- Ituaiga: Documentary
- Potu potu: Studio H&S
- Upu autu:
- Faʻatonu: Walter Heynowski, Gerhard Scheumann
- Faʻafiafia: Gerhard Scheumann, Gert Grasse, Klaus Ackermann, Heinz Behrens, Monica Bielenstein, Victor Deiß
