Avatar: The Way of Water — now playing in cinemas worldwide — has a gargantuan task on its hands. (And I’m not even talking about the sequel’s need to earn over a billion dollars at the box office to turn a profit.) James Cameron, the returning director, co-writer, co-editor, and co-producer on the second Avatar movie, must prove to audiences that his world of Pandora is worth revisiting thirteen years on. The original Avatar was both a showcase of 3D cinema and otherworldly visuals. One of them is on its last legs, while VFX and scale are seemingly everywhere these days. The spectacle alone — Cameron had little to offer on the story and characters front back then — cannot carry Avatar: The Way of Water. It needs more. Additionally, the first sequel is an audition for more Avatar sequels — slated to open every alternate December between now and 2028 — one of which has already been filmed, one that has a script in place, and another with a figment of an idea. Cameron …