I do love Bruno Ganz, as he's the go-to actor for practically every German film. War films aren't generally to my taste, either, though it depends (I loved Casualties of War but seeing it once was enough). Your description of it is enough to convince me to see it; something that most historical films have a habit of doing when depicting figures such as Hitler is to either have them as evil and monstrous as possible, or almost sympathetic and to a degree, buffoonish.

I hate to link you to a gossip site: http://justjared.buzznet.com/2009/01/19/tom-cruise-ive-always-wanted-to-kill-hitler/
He could just be referring to his views a child, but if he still feels that way now, he just comes off as a little too simplistic. Or perhaps it's just my bias against him coming out.

Nazis and the like have been over-romanticized and mythologized to an insane degree, when what's truly horrifying about all of them is that they were regular people. To read original publications from that time, you just see Hitler and Goebbels at dinner parties and shaking hands with children; it's the banality of evil. They wielded great power for sinister purposes, but were totally average. It would be a mundane existence and many people would likely allow themselves to fall into a simple life of routine. It'd be easy for one to make claims of what'd they'd do in such a society, but we'd never truly know unless we lived through it.

I believe I have heard of Fatherland before, but as I'm always into finding films and books, I will have to add it to my list. I've been reading non-fiction for so long that I greatly appreciate finding rewarding, well-written fiction.