Cold Case Hammarskjöld is a 2019 documentary film by Danish film maker Mads Brügger. It depicts the death of Dag Hammarskjöld in the 1961 Ndola United Nations DC-6 crash and proposes a theory that a white supremacist organization attempted to spread HIV/AIDS among black Africans. The film investigates the possibility that Hammarskjöld's plane, which crashed in Northern Rhodesia, was shot down by Belgian-British mercenary pilot Jan van Risseghem. After unsuccessful attempts to conclusively prove that theory, the film veers off to investigate the mysterious mercenary organization South African Institute for Maritime Research (SAIMR), managing to contact two new witnesses that claim to have been involved with the organization. Parts of the movie are meta-cinematic, reflecting upon theatrical methods used (role playing, dressing up and employment of two African secretaries) and the true motivations of the filmmaker.