What's up, doc?

It was on this day in 1940 that Bugs Bunny made his debut in a short animated film called A Wild Hare. Bugs Bunny was designed to be the epitome of cool, modeled on Groucho Marx, with a carrot rather than a cigar. He is never fazed by what the world throws at him. He nonchalantly chews on his carrot in the face of all his enemies, speaking in a Brooklyn accent. A Wild Hare, which premiered on this day, told the story of Elmer Fudd's attempt to hunt rabbits, only to have Bugs Bunny thwart him at every turn. Bugs Bunny's first line in the cartoon, when he meets Elmer Fudd, is, "What's up, doc?" It was a phrase that one of the writers remembered people saying where he grew up in Texas. It got such a big laugh in the theaters that the writers decided to make it a catchphrase.