Set during the North African campaign, General Pandemonium gets a frantic call from Foghorn Leghorn saying that a secret German document has been stolen, and immediately heads for the Carrotblanca nightclub―the Cafe Au Lait Americain featuring "Eleanor Roosevelt's All girl revue" with his friend, Sam Sheepdog.
Kitty attracts the unwanted attention of Captain Louis aka Pepe Le Pew, but she scratches him and throws him into the wall.
Louis asks Kitty for some tea, causing her to jump out of the plane in fright, seemingly without a parachute, landing right in front of Bugs.
They pitched the idea of the Looney Tunes characters doing a parody of Casablanca to the executives of Warner Bros. at the time, Bob Daly and Terry Semel.
[1] The short involves nearly all the major Looney Tunes characters in roles from the film, including Bugs Bunny as Mr. Bugs, Daffy Duck as Sam Duck, Yosemite Sam as General Pandemonium, Tweety as Usmarte, Sylvester as Sylvester Slazo, Penelope Pussycat as Kitty Ketty (this short marks Penelope's first speaking role), and Pepé Le Pew as Captain Louis.
Several minor Looney Tunes characters can be seen in the background (such as Pete Puma as a waiter wearing a kaftan and fez, Giovanni Jones and The Crusher as the maitre d' and doorman, Gossamer as a customer at a table, and Sam Sheepdog as General Pandemonium's driver assistant).