The Twits (1970)

Mr. and Mrs. Twit are the meanest, smelliest, nastiest people in the world who also happen to own and operate the most disgusting, most dangerous, most idiotic amusement park in the world, Twitlandia. But when the Twits rise to power in their town, two brave orphans and a family of magical animals are forced to become as tricky as the Twits in order to save the city.