Merrie Melodies - A Corny Concerto (1943)

This was the first WB cartoon ever to feature more than two of their major characters in starring roles (though not all appeared on screen at the same time). Elmer Fudd appears as the musicologist/composer (as Deems Taylor was in Fantasia) introducing each segment. The first segment, Tales from the Vienna Woods, stars Bugs Bunny and Porky Pig, the former as the prey and the latter (in his first color cartoon) as the hunter. This is one of only two cartoons in which both Bugs and Porky appear (the other, Dumb Patrol (1964) features Porky only briefly). In addition, a number of people consider the main character in the second segment, The Blue Danube, to be a "baby" version of Daffy Duck. This is also the second time the Warner Bros. studio had lampooned Fantasia; Pigs in a Polka from 1942 had given a similar treatment to the works of Johannes Brahms, with the Three Little Pigs as the stars.

From freepublicdomain.com