In this making-of documentary we hear from Wyatt, Williams, Letteri, Lemmon, Serkis, animation supervisor Eric Reynolds, creatures supervisor Matthew Muntean, VFX supervisor R. Christopher White, digital creatures supervisor Simon Clutterbuck, texture/creature art director Gino Acevedo, lead texture artist Keven Norris, lead groomer Nicholas Gaul, animation supervisor Daniel Barrett, and actor Terry Notary. It looks at the methods used to create the film's animated animals and digs into the technical elements with greater specificity.