sentences:  The duo's first cartoon together was 1940's "Puss Gets the Boot", featuring an unnamed mouse's attempts to outwit a housecat named Jasper.Though released without fanfare, the short was financially and critically successful, earning an Academy Award nomination for Best Short Subject (Cartoons) of 1940.On the strength of the Oscar nomination and public demand, Hanna and Barbera were assigned to direct more cat-and-mouse cartoons, soon christening the characters "Tom and Jerry".