Great list. May I suggest this Russian film, one of the best WWII movies I have ever seen The Star (Zvezda). Also, I have done a companion list of World War One movies. :-)
I'm going to give you 6 non-fictional:
Patton (1970)
The Longest Day (1962)
The Dam Busters (1955)
A Bridge Too Far (1977)
The Great Escape (1963)
Sink the Bismark (1970)
And 5 fictional:
The Secret War of Harry Frigg (1968)
The Dirty Dozen (1967)
Stalingrad (1993, German and from their perspective)
The Bridge over the River Kwai (1957)
The Eagle Has Landed (1976)
All of which, I'd recommend to those who enjoy the genre.
This subject is pretty interesting & I'll suggest some films:
The Boy In The Striped Pajamas
The Counterfeiters
Inglorious Bastards
The Great Dictator
Mephisto
Idk, there are so many of them. I still think the Schindler's List is the best movie about that war.
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7.4 
7 
Patton (1970)
The Longest Day (1962)
The Dam Busters (1955)
A Bridge Too Far (1977)
The Great Escape (1963)
Sink the Bismark (1970)
And 5 fictional:
The Secret War of Harry Frigg (1968)
The Dirty Dozen (1967)
Stalingrad (1993, German and from their perspective)
The Bridge over the River Kwai (1957)
The Eagle Has Landed (1976)
All of which, I'd recommend to those who enjoy the genre.
The Boy In The Striped Pajamas
The Counterfeiters
Inglorious Bastards
The Great Dictator
Mephisto
Idk, there are so many of them. I still think the Schindler's List is the best movie about that war.