Guide Note: The History Channel documentary Hitler's Private World brings sound to Hitler's silent private home videos. Experts utilized modern software technology called Automated Lip Reading to analyze Hitler's lip movements and determine what he says in the films. The documentary features footage of Hitler speaking casually to his inner circle, including Heinrich Himmler, Karl Wolff and Reinhard Heydrich and his mistress Eva Braun at his retreat in Berghof in the Bavarian Alps. In the video, historians discuss what Hitler's private world reveals about his public personae. Fast Facts:

1. Eva Braun shot much of Hitler's private video footage
2. Many of these films are shot at Berghof, Hitler's retreat in the Alps.