Geheimnis um Burg Brethen
- Annu: 1976
- Paese: Germany
- Genre: Drama
- Studio: Dreamy-Film
- Parolla chjave: based on novel or book
- Direttore: Bert Nosslar
- Cast: Ulrich Beiger, Hans Kahlert, Gerd Frickhöffer, Walter Ladengast, Oliver Tiebing, Jochen Paulmann
