Watch the trailer for the documentary about the making of a remarkable and harrowing film: the 1945 study of the Nazi death camps as they were liberated by Allied forces. Despite the involvement of such luminaries as Alfred Hitchcock and Billy Wilder, Memory of the Camps (aka F3080) was shelved by the British and US governments, and only rediscovered in the 1980s. Night Will Fall, directed by André Singer, outlines the story behind Memory of the Camps, and is released in the UK on 19 September