THIS WAS OUTSTANDING. From 2005--and nominated for an Academy Award. Yes, I'm WAAAY behind, but glad I finally came across it.
A firsthand account of the last 12 days before the fall of Berlin and the Nazi's, as told by combined memoirs of Hitler's surviving secretary, officers, and others in his bunker during those final days. This pre-dated Valkyrie by a few years, and though the films told the story from two very different sides, Downfall as a movie was vastly superior in every way imaginable. German language (as Valkyrie should've been), and Bruno Ganz was brilliant as Hitler. It's also clear that Valkyrie borrowed much from it in terms of sets, costumes, and even actors. It was long (the extended cut sent by Netflix), compelling, chilling, and brutal as one would imagine. But very highly recommended as pure cinema, and a must-see for anyone with interest in this period.