East German film about the history of Red Orchestra, a real life German pro-Soviet spy ring created after the rise of Hitler that turned into a resistance movement led by a leftist Nazi officer, Harro Schulze-Boysen, and Arvid Harnack.
Unfortunately the movie KLK Calling PTZ – The Red Orchestra is not yet available on Disney Plus.
| Directing | Horst E. Brandt | Director |
| Editing | Erika Lehmphul | Editor |
| Writing | Claus Küchenmeister | Writer |
| Writing | Wera Küchenmeister | Writer |
| Sound | Helmut Nier | Music |
| Writing | Horst E. Brandt | Writer |
| Crew | Günter Haubold | Cinematography |