I wonder what will happen in a hundred years, when anyone of the WW2 era will have been dead quite a while...It will be easier for people to believe it was some sort of conspiracy. Places like Auschwitz may just seem like it was built as part of the conspiracy, people might even claim it was made as a film set. If we maintain a technological society, in a hundred years computer graphics will be completely realistic, and the idea of faking old film footage will be commonplace. In fact people WILL fake old film footage, for fun, and to try to prove historic events as they want them to be believed. Holocaust deniers will fake footage to prove their point, and believers will fake footage to prove their point, and by then I can't see how anyone would take film footage seriously whatever it is, even it it is the genuine article.