In 1994, THIS Warner Brother’s 1957 classic featuring Elmer Fudd and Bugs Bunny was voted #1 of the 50 Greatest Cartoons.
Ans: “What’s Opera, Doc?” (It was a parody of Richard Wagner’s “Ring” cycle operas. It was also deemed “culturally, historically, or aesthetically significant” by the Library of Congress and was selected for preservation in the National Film Registry.)