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 read, and Spaulding provided Geisel with a similar list. Geisel later told biographers Judith and Neil Morgan that Spaulding had supplied him with a list of 348 words that every six-year-old should know and insisted that the book's vocabulary be limited to 225 words. However, according to Philip Nel, Geisel gave varying numbers in interviews from 1964 to 1969. He variously claimed that he could use between 200 and 250 words from a list of between 300 and 400; the finished book contains 236 different words. Geisel gave varying accounts of how he conceived of "The Cat in the Hat".