The Cat in the Hat been adapted for various media, including theater, television, and film. The animated musical TV special premiered in 1971 and starred Allan Sherman as the Cat. In 2003, a live-action film adaptation was released, starring Mike Myers as the Cat. Boxoffice.com reports that the film grossed $133,960,541 worldwide on an estimated $109 million budget. In 2012, following the financial success of "The Lorax", the animated film adaptation of the Dr. Seuss book of the same name, Universal Pictures and Illumination Entertainment announced plans to produce a CGI adaptation of "The Cat in the Hat". Rob Lieber was set to write the
The Cat in the Hat for the series, including "The Cat in the Hat Comes Back" (1958), "Green Eggs and Ham" (1960), "Hop on Pop" (1963), and "Fox in Socks" (1965). He initially used word lists of limited vocabularies to create these books, as he had with "The Cat in the Hat", but moved away from the lists as he came to believe "that a child could learn any amount of words if fed them slowly and if the books were amply illustrated". Other authors also contributed notable books to the series, including "A Fly Went By" (1958), "Sam and the Firefly" (1958), "Go, Dog.