Horton hears a だれ.
The lighter side...of Dr. Seuss (Pronounced "Soice" by the way) includes Green Eggs and Ham, The Grinch and Cat in the Hat to name but a few of his creations. Apart from the Chuck Jones produced Grinch from the 60's, and a few Cat in the Hat and Horton specials, there had been almost no live action forays into his work.
The 5000 Fingers of Dr. T was the only one to date written by him and using several of his backgrounds. It is possible that the character of Sideshow Bob from The Simpsons is based in part on the character of Dr. Terwilliker. Not only are their surnames similar (Terwilliger), but Sideshow Bob's accent and countenance bear a superficial resemblance to Hans Conried's performance, and both characters have a nemesis named Bart.
After his death in 1991, his wife refused to license his characters to Hollywood until she saw a certain Jim Carrey perform and allowed The Grinch to be made, provided he play the role. She later released The Cat in the Hat into the fold, under the condition that Mike Myers play the role. I didn't see it, but really with Seuss's source material, you shouldn't have to rely on fart jokes.
The next big event will be an all CGI version of Horton Hears a Who. I always loved this story (a possible allegory for atomic war) and if the final result looks anything like these two stills, I have high hopes for it.