A German secret document is stolen and Tweety (as Ugarte, depicted unnervingly like Peter Lorre), the actual thief, lures Bugs Bunny into taking it. Yosemite Sam (as Major Strasser) gets a frantic call from Foghorn Leghorn saying the secret document has been stolen, and immediately heads for the CarrotBlanca hotel. Meanwhile, Sylvester (as Victor Lazlo) and his wife, Penelope Pussycat (as Ilsa) arrive at the hotel. Penelope attracts the attention of Pepe Le Pew (unsurprisingly). Penelope also happens to be an old love-interest of Bugs'.
Yosemite suspects Sylvester may know about the document and binds him in his office. Penelope pleads with Bugs to help Sylvester out of this. Though Bugs is initially unwilling, he goes to Yosemite's office nevertheless and confuses the General himself into jail. The story ends with Sylvester and Penelope escaping on the plane for Toronto, New York City and Cucamonga (an announcer also calls out the cities, and exaggerates Cucamonga, in reference to Mel Blanc's famous announcing calls), as Bugs watches them go...except that they find Pepe on the plane working as a steward. The skunk asks Penelope, "Coffee, tea, or moi?" This causes her to jump out, seemingly without a parachute, landing right in front of Bugs. They kiss, then the parachute opens, covering them. The Warner Bros. Family Entertainment logo appears with "That's All Folks!" written on top of it and Tweety, in his Peter Lorre look, says, "That's All Folks!", laughs.
- This cartoon contains the Looney Tunes logo, but the Merrie Melodies theme music, "Merrily We Roll Along", is played over it.
- It was originally shown in cinemas alongside The Amazing Panda Adventure (in the U.S.) and The Pebble and the Penguin (internationally). It was subsequently released on video packaged with older Looney Tunes cartoons and was included in the special edition DVD and Blu-ray Disc releases of Casablanca, the film to which it is both a parody and an homage. At the time of release, WB did not own the rights to Casablanca (such rights were with Turner Entertainment at the time: WB later regained those rights when Turner was purchased by Time Warner in 1996).
- Unlike the previous modern Looney Tunes shorts, this short was not made by the Greg Ford/Terry Lennon team nor Chuck Jones Film Productions. It was instead produced by the Animaniacs writing team at Warner Bros. Feature Animation (it's possible this short served as an animation test for Space Jam). Carrotblanca was the only Looney Tunes short produced by that group of writers and the Feature Animation division.
- The short involves nearly all the major Looney Tunes characters in roles from the film, including Bugs Bunny as Rick, Daffy Duck as Sam and Pepe Le Pew as Captain Renault. Some characters use their real names, others the names of the characters in the original film, or parodic versions. Several minor Looney Tunes characters can be seen in the background (such as Pete Puma as a waiter wearing a kaftan and fez, and Giovanni Jones and The Crusher as the maitre d' and doorman).
- Joe Alaskey as Sylvester and Daffy Duck
- Bob Bergen as Tweety and The Crusher
- Greg Burson as Bugs Bunny, Foghorn Leghorn and Pepe Le Pew
- Maurice LaMarche as Yosemite Sam
- Tress MacNeille as Penelope Pussycat
- Porky Pig
- Sam Sheepdog
- Spike and Chester
- Pete Puma
- Giovanni Jones
- Beaky Buzzard
- Miss Prissy
- Barnyard Dawg
- Elmer Fudd
- VHS - Carrotblanca
- DVD - Casablanca: Ultimate Collector's Edition
- DVD - The Essential Bugs Bunny, Disc 2
- Blu-ray - Casablanca: 70th Anniversary Limited Collector's Edition