But it was their third cartoon that established the definitive early look and personality of both Mickey and Minnie, as well as Pete. "Steamboat Willie", was the third short of the series to be produced but released first on November 18, 1928. Pete was featured as the Captain of the steamboat, Mickey as a crew of one and Minnie as their single passenger. The two anthropomorphic mice first star in a sound film and spend most of its duration playing music to the tune of "Turkey in the Straw".