I think history has shown us that there will always be war as long as this planet exists. There are so many “reasons” to go to war. Some do it for oil or land or gold and some just want to kill everyone who doesn’t share their beliefs and goals. I don’t support war, but sometimes just the fact that there can be war, gets people to seek for more peaceful ways to solve the conflicts. That’s pretty much the only good point in war in my opinion.
As for the movie, I haven’t seen it yet, but I definitely want to see it.