*** ----> Gorilla warfare: Behind the visuals of 'Planet of the Apes' | THE DAILY TRIBUNE | KINGDOM OF BAHRAIN

Gorilla warfare: Behind the visuals of 'Planet of the Apes'

Los Angeles : As Caesar sits astride a horse rallying his legions to battle you'd be forgiven for thinking you were watching a Roman-era war epic -- except that the protagonist is a chimpanzee.

"War for the Planet of the Apes," the third installment of the rebooted simian sci-fi franchise, opens on Friday to reviews lauding some of the most breathtaking visual effects ever seen in cinema.

Behind the photo-real apes is Weta Digital, a pioneering Wellington-based CGI studio founded by Peter Jackson that has seen its reputation grow steadily since its groundbreaking performance-capture work on his "The Lord of the Rings" movies. 

Filmed against the stark snowy vistas of Alberta and British Columbia, "War" sees director Matt Reeves unleash the rapidly evolving simians into a world boiling over with divisions and rage.

A band of soldiers led by a battle-hardened loose cannon -- Woody Harrelson channeling Marlon Brando's Colonel Kurtz -- launches an all-out attack to destroy the apes once and for all.

The movie is driven by Andy Serkis as the majestic Caesar, reprising a role for which he has drawn even more acclaim than for his other digital characters, Gollum in "Rings" and King Kong.

"Physically in this film, Caesar is much more upright and he uses his hands a lot more now, so he's more like a human being in ape skin," Serkis says in the production notes.

"But as his intelligence and abilities have grown, the things he feels and remembers have become more daunting to him."