We drew on our extensive experience in creature work to create a photorealistic George, as well as the mutated lizard, Lizzie, and the (flying) wolf, Ralph. George is the emotional centre of the film and we took great care to ensure the close bond he shares with Davis is authentic.
The mutated creatures end up on a wild destruction-filled battle through Chicago, with the city crumbling in their wake. We made our CG monsters interact with the city destruction and engineered an action-packed spectacle of monstrous mayhem.