The Volksbund has been actively searching for the missing at Stalingrad for many years using local groups and diggers as well as the VBO , the reconciliation cemetery at Rossoschka is where all the remains are interred to. , it has been there since the late 1990's.
About 8 years ago i was present at the ceremony at Rossoschka when the memorial stones to over 100,000 who are MIA were put in place !
Valery the guy in the documentary is one of the most well known diggers and guides , the initial documentary was commossioned via a good friend of mine who was a veteran JG 3 !!