Zoe Saldaña and Sigourney Weaver apologize in advance for their paintings. In this episode of “Portrait Mode,” the ‘Avatar: Fire and Ash’ stars pick up their brushes and reminisce about the best directing note James Cameron ever gave them, what’s exciting them most in fashion, and Zoe’s first impression of Sigourney, the ultimate sci-fi queen. Watch as Sigourney recounts her ‘Titanic’ theater mishap and reveals she thinks Zoe should’ve won an Oscar for her role as Neytiri.br br Watch ‘Avatar: Fire and Ash’ in theaters December 19th.