The Winds of War.
Herman Woulk's novel put on film.
It was more of a TV mini-series, but I remember back in the 80s when it came out, I stayed home every night watching it. I would get all teary eyed sometimes.
War and Rememberance as well. Still has the single most horrifying scene ever shown on TV (if you saw it you will know what I'm talking about).
That and its sequel, "War and Remembrance" were excellent books and films.
One of the best lines of any WWII book has the Brit journalist and his niece in Singapore just before its fall to Japan. All the talk on the island is whether or not "Fortress Singapore" actually is and public optimism is tempered with lots of private doubt. It is in that atmosphere that the uncle bursts into his sleeping niece's room shouting,
"We just won the war! We just won the war!"
His groggy niece who has no idea what he's talking about asks, "The Germans surrendered?"
To which he replies, "No, the Japs just bombed Pearl Harbor. The Yanks are in it! It'll take a few years of fighting, but the outcome is no longer in doubt."