Seussentenial: 100 years of Dr. Seuss (angol nyelven). Today.com, 2004. február 26. [2013. december 3-i dátummal az eredetiből archiválva]. (Hozzáférés: 2013. július 2.) „The movie was judged by some critics as the worst of 2003, she notes. Geisel says she will never again allow Hollywood to portray Seuss characters in live action. An animated work based on the elephant character Horton will be the next film project.”
Seussentenial: 100 years of Dr. Seuss (angol nyelven). Today.com, 2004. február 26. [2013. december 3-i dátummal az eredetiből archiválva]. (Hozzáférés: 2013. július 2.) „The movie was judged by some critics as the worst of 2003, she notes. Geisel says she will never again allow Hollywood to portray Seuss characters in live action. An animated work based on the elephant character Horton will be the next film project.”