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"
Ward Kimball served as one of Disney's Nine Old Men. He instilled life to diverse Disney characters, such as Mickey Mouse, Jiminy Cricket, the Cheshire Cat, the Mad Hatter, and Tweedledee and Tweedledum. Kimball attended the Santa Barbara School of the Arts in order to become a painter and illustrator. Kimball's instructor at the school suggested to him that his work should be submitted to Walt Disney Productions (later known as the Walt Disney Animation Studios), and that he should pursue a career in animation. In March 1934, a 20-year-old Kimball applied for a job at the Disney studio. In April 1934,