Unbirthday film combines the idea of an unbirthday introduced in "Through the Looking-Glass" with the "Mad Tea Party" described in "Alice's Adventures in Wonderland". The unbirthday party is also the subject of a 1951 comic released to coincide with the film. The comic version is substantially longer (32 pages) than the scene in the animated film, and has Alice being invited to the unbirthday party of Tweedledum and Tweedledee (who are not actually present at the unbirthday party). Humpty Dumpty is a character in the comic version, although not in the manner in which he appears in "Through the Looking-Glass". "UnBirthday"
Caterpillar (Alice's Adventures in Wonderland) Hearts. Alan Rickman voices the Caterpillar, who in this adaptation is named Absolem. Rickman was filmed while recording his voice in a studio, but his face was not composited onto the character's face as originally planned. He appears five times in the movie. The first time is outside Wonderland, when a young man named Hamish Ascot is about to propose to Alice and she notices a blue caterpillar on his shoulder. The second time is when Nivens McTwisp the White Rabbit, Tweedledum and Tweedledee, Mallymkun the Dormouse, and the Uilleam the Dodo consider Alice's identity, and they consult him. Absolem