Saving Private Ryan.
Platoon.
Blackhawk Down.
We Were Soldiers.
Hostile, I know you've been advised before, but if you're a war movie fan, Saving Private Ryan gives the most realistic vantage point that cinema can in my opinion. I do remember, however, that many WW2 vets weren't able to make it through the first act either due to the memories it brought back. In fact, many friends and family members warned my dad (Vietnam vet) not to see it. He did watch it through. Even with as high as my respect was for him, I'm glad I saw this with him the first time.
I wish the snot-nosed brats that I work with on a daily basis were made to sit down and watch this film. I hope I have the chance to meet Spielberg one day to shake his hand.