For many in the film world and beyond, Claude Lanzmann's 566-minute documentary Shoah, first released in 1985, remains a milestone that has yet to be surpassed. Even Lanzmann himself, who went on to direct a handful of movies using footage that didn't make Shoah's original cut,

Documentary “All I Had Was Nothingness," which looks at the making of “Shoah,” has its world premiere at the Berlin Film Festival.

All I Had Was Nothingness director Guillaume Ribot tells Screen about opening a window into Claude Lanzmann's filmmaking journey on Shoah.