Watch Possum Wars for Free: How to Stream the Movie Online at 123Movies. . Every night around Australia, native possums scamper across city rooftops in an endless quest for food and shelter. Forced out of their bush habitats by encroaching development, these mischievous marsupials swarm into cities where their raucous noise and destructive appetites bring them few friends. They live in our roofs, pillage our fruit trees, plunder our flowers and pee on our paths. And when possums and people fight for real estate it’s war!