Forty years after its release, Claude Lanzmann’s Shoah (1985) is regarded not just as one of the greatest documentaries ever made, but a film that had to be made in order to shake the world into engaging with its still recent trauma. A new documentary, however, shows how the French director’s seminal “fiction of the real” was almost never completed. In preparation for All I Had Was Nothingness, which premiered this week at the Berlin film festival, French director Guillaume Ribot revisited the entire 220 hours of raw footage that Lanzmann filmed between 1976-81, before he then edited it down...