In 1946 WB and MGM released two cartoons about a pianoist upstaged by a mouse. Both studios accused each other of coppying their idea. Cartoons Shown: Rhapsody Rabbit (WB cartoon) Made in 1946, directed by Friz Freleng Bugs Bunny is a pianoist entertaining an audience, but gets tormented by a mouse. The Cat Concerto (MGM cartoon) Made in 1946, directed by Willim Hanna and Joe Barbara Same plot as ""Rhapsody Rabbit"" with Tom & Jerry replacing Bugs and the mouse. TOONHEADS TRIVIA: What WB cartoon broke MGM's 4-year award winning streak? ANSWER: Friz Freleng's cartoon, Tweety Pie. Tweety Pie Made in 1947, directed by Friz Freleng. Sylvester (called ""Thomas"" in this cartoon), attempts to eat a yellow canary named Tweety, but Sylvester's owner disaproves of it and takes Tweety in as a pet.