'Avatar: Fire and Ash': James Cameron cheers Sigourney Weaver's return as Kiri

Entertainment Dec 18, 2025

James Cameron is giving major props to Sigourney Weaver for her performance as teenage Na'vi Kiri in the upcoming Avatar: Fire and Ash, hitting theaters December 19, 2025.
At 76, Weaver is stepping back into the role she first played in Avatar: The Way of Water, showing that age really doesn't stop talent.

How Weaver brought Kiri to life

Cameron called it a huge challenge for Weaver to channel her own teenage insecurities for the role, sharing that she drew on her own awkwardness and invisibility as a teenager.
Weaver worked hard to capture Kiri's emotional depth—something Cameron says truly enriches the new film.