How Oona Chaplin Connected to Her Scorching ‘Avatar: Fire and Ash’ Villain

Oona Chaplin had to wait eight years between being cast in “Avatar: Fire and Ash” and seeing the finished film. But the British-Spanish-Swiss actress — grand-daughter of Charlie Chaplin and great-grand-daughter of Eugene O’Neill — didn’t mind. “There’s a part of me that would have been happy with just the process,” Chaplin said of filming the third chapter in James Cameron’s epic sci-fi/fantasy series, which shot back to back with “Avatar: The Way of Water.” “It was such a rich and satisfying process as an artist...