Von Stauffenberg was persuaded to become involved in the plot by his uncle 's good friend , Fritz-Dietlof von der Schulenburg .
Though not depicted , but briefly mentioned in the film , von Stauffenberg was persuaded to become involved in the plot by his uncle , Nikolaus Graf von Üxküll-Gyllenband and his uncle 's good friend , Fritz-Dietlof von der Schulenburg , who were both disenchanted with the Nazis and appalled by the atrocities in the concentration camps .
Valkyrie -LRB-film-RRB-