In the 1940s Superman cartoons, produced by Paramount Pictures and Fleischer Studios, Superman is said to live on the island of Manhattan. In the seventh cartoon of the series, "Electric Earthquake", a Native American mad scientist claims that his people are the rightful owners of Manhattan, thus placing these cartoons on the island. In the fifth episode in the series, "The Bulleteers," the name of the city is identified as Metropolis, as the Bulleteers address in that cartoon the population of Superman's city as "citizens of Metropolis"; and in the 13th episode "Destruction Inc.," Metropolis is even seen spelled out twice on the Metropolis Munition Works.