Sigourney Weaver says working with James Cameron on the Avatar series is "like the perfect job for an actor": "He does everything possible to make sure you get to try everything you want to try"

Kiri is no ordinary Na'vi. Born from Dr. Grace Augustine's Avatar, Kiri has been adopted by Sam Worthington's Jake Sully and Zoe Saldaña's Neytiri and has grown up alongside their children, but it's clear there's something very special about this unconventional child.Sigourney Weaver, who played Dr. Grace in Avatar and returned as Kiri in The Way of Water, is back once again as her teenaged character in Avatar: Fire and Ash, which explores Kiri's mysterious, mystical connection with Pando