As a side rant, I do not hold modern Japanese accountable for the sins of their fathers. I believe they have gone a tremendous distance in putting the atrocities of the past behind them. Same with the German people. The only crime I would accuse them of is embracing idiot socialist policies that will inevitably lead to the same stupidity. Same for the dumb@ss Americans who voted for Obama. However as a people, I would not condemn them for that past history. I applaud them for the progress they have made as a people and their contributions to modern civilization.
And yes, my kin have fought and died in every war on the continent and beyond since before we were America.
That is, IMO, a direct result of fighting a war as it should: Fully committed, to its proper conclusion, with unconditional surrender as the only acceptable end.
We've seen the effect the lack of that has brought after every conflict since WWII.
The brutality of the japs during WWII is very well documented, as is their reconstruction as a powerful and productive ally to the United States.
Everything will depend on how the movie portrays the combatants and what message is conveyed.