Motion capture
Given Weta had plenty of experience creating animated apes in "King Kong" and "Rise of the Planet of the Apes" and its sequels "Dawn" and "War", it helped the studio create George "in a much shorter time than it may have 10 years ago", according to Winquist. Motion capture coach Terry Notary even took a break from "", which was also filmed in Atlanta, to help Jason Liles in his performance as George. On the other hand, the lack of motion capture for Ralph and Lizzie let the animators go loose with how these monsters were portrayed, such as "a wolf that has porcupine spines and wings".