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"
Tweedledum and Tweedledee Carroll, having introduced two fat little men named Tweedledum and Tweedledee, quotes the nursery rhyme, which the two brothers then go on to enact. They agree to have a battle, but never have one. When they see a monstrous black crow swooping down, they take to their heels. The Tweedle brothers never contradict each other, even when one of them, according to the rhyme, "agrees to have a battle". Rather, they complement each other's words. This fact has led Tenniel to assume that they are twins, and Gardner goes so far as to claim that Carroll intended them to be