
http://www.independent.co.uk/arts-enter ... 44945.html
The British Army Film Unit cameramen who shot the liberation of Bergen-Belsen concentration camp in 1945 used to joke about the reaction of Alfred Hithcock to the horrific footage they filmed. When Hitchcock first saw the footage, the legendary British director was reportedly so traumatised that he stayed away from Pinewood Studios for a week. Hitchcock may have been the king of horror movies but he was utterly appalled by "the real thing".
Eisenhower blew a gasket when they came upon the camps and had the the German locals forcibly taken through the camps.
That's represented in 'Saving Private Ryan' and 'Shindlers' List'