I think most of the early WWII movies made by Americans are much to patriotic and let the Wehrmacht or the japanese army look like a bunch of incompetent idiots.
For Example in Windtalkers, U-571,Sahara, or SPR. I like Saving Private Ryan, but the scene with the mörser-grenades used without the mortar...okay, one more of this "we are the best" movies.
My favorites are: Das Boot, Empire of the Sun, Memphis Belle, Stalingrad (from verhoven), Thin Red Line, Die Brücke von Arnheim (A bridge too far), Pearl Harbour, Tuskegee Airmen, Schindlers Liste, Battle of Britain, Der Adler ist gelandet (The Eagle has landed)
I´ve forgotten The Great Escape, really like this one.