 Improvements to the Australia Zoo include the Animal Planet Crocoseum, the rainforest aviary and Tiger Temple.Irwin mentioned that he was considering opening an Australia Zoo in Las Vegas, Nevada, and possibly at other sites around the world.In 2001, Irwin appeared in a cameo role in the Eddie Murphy film "Dr. Dolittle 2", in which an alligator warns Dolittle that he knows Irwin is going to grab him and is prepared to attack when he does, but Dolittle fails to warn Irwin in time.