Watch LookMovie. Alligator Kingdom 3D is the first-ever 3D HD documentary shot in the protected areas of the Okefenokee National Wildlife Refuge. A magic carpet ride into one of the last great black water swamps on earth-- the great Okefenokee. Examines the ancient wetlands' intricate ecosystem and reveals the habits and traits of its most famous predator, the fearsome American alligator.