This is strictly for fans of the new prequels to the original 1968 "Planet of the Apes". "War" follows the logical progression of "Rise" and "Dawn" as the apes continue to evolve and be a threat to the surviving humans, who are slowing falling victim to the Simian Flu (becoming mute and losing intelligence). Caesar, the ape leader, has become a tragic Shakespearean character trying to lead his tribe to a promised land of shelter and safety.
Andy Serkis does the "motion capture" acting as Caesar and it's truly amazing work. The facial expressions and fluidity of motion are just fantastic. Woody Harrelson, is the "Colonel", a crazed military leader obsessed with wiping out the ape population. Steve Zahn also co-stars as "Bad Ape" who serves as comic relief in an otherwise dour and depressing film. Amiah Miller is the mute human child, who comes to be known as Nova (a link to the original film).
Aside from the few big action sequences, the film does little to entertain (if you call watching apes get slaughtered, entertainment) and just serves to set up a natural progression that explains how the world of the original film came to exist. Besides the wonderful work of Mr. Serkis, there is to appreciate here. Luckily, the ending doesn't necessarily mean another sequel.