Be careful about Downfall – it’s as bad as a Hollywood movie in the way it rewrites and distorts the historical facts. The heroic SS doctor for example carried out experiments on prisoners in concentration camps and Goebbel's speech about cutting throats was taken from a fictitious, discredited source. Mind you, I dread to think what Tom Cruise’s Valkyrie will be like

Be similarly careful with "Inside the Third Reich". It's extremely interesting and insightful don't get me wrong but as Jim B says, his account is very self-serving. Afterwards you should read Gitta Sereny's "Albert Speer: His battle with truth" to discover what he left out. Nicolaus Von Below was so disgusted by Speer's distorted version of events and his portrayal of Hitler that he wrote his own account "At Hitler's Side" which is more honest about Hitler's strengths as well as his obvious shortcomings.