KLK Calling PTZ – The Red Orchestra
KLK Calling PTZ – The Red Orchestra ( alternate title: "KLK To PTX - The Red Band"; German: "KLK an PTX – Die Rote Kapelle" ) is a 1971 East German film about the history of the Red Orchestra espionage ring . 
<triplet> KLK Calling PTZ – The Red Orchestra <subj> 1971 <obj> publication date