Al Jolson, Jack Benny, Eddie Cantor and Bing Crosby are caricatured as park bums, who each do their routine when Elmer Fudd shows up. Elmer spots Bugs and asks, "Why are you hanging around these guys? They'll never amount to anything."
Bugs turns down dozens of scripts, including one entitled "Life With Father". Bugs predicts: "Ehhh...this will never be a hit." It actually ran for 3,224 performances (1939-1947) on Broadway, making it the longest-running non-musical play in Broadway history. It was also made into a film and released in 1947. William Powell, of "The Thin Man" series, played the lead.
Bugs and Elmer perform the "What's Up Doc?" title song. This is the first cartoon in which its lyrics are heard. However, the song first was first released in "Bugs Bunny In Storyland", a Capitol Record Reader recorded on April 21 and 22, 1949.
The original working title was "Hare's My Story".