In “Avatar: Fire and Ash," the Na’vi are once again under attack by human military forces, as well as a new warrior clan called the Mangkwans.

James Cameron's hugely successful film franchise will return with Avatar: Fire & Ash in December. From extinct birds to ...

James Cameron has given us a whole new sci-fi world with dazzling visuals in the "Avatar" franchise. Thanks to advanced technology, some of which Cameron and his crew had to invent for themselves, the ...