The Bunker (1981) on Netflix

In 1945, The Third Reich is in its death throes with the Allies relentlessly attacking the capital city of Berlin. Its Fuehrer, Adolf Hitler, retreats into his fortified bunker in Berlin with his senior staff. There, gripped with both delusions of grandeur and despair, Hitler commands a hopeless last stand with resources existing largely in his own mind. While resisting the pleas of rational minions like Albert Speer, basic reality finally comes unavoidable. With that, Hitler and his fanatical fellows prepare for their own end even as their grandiose dreams are becoming a smoking ruin above.