Synopsis: Join the fun when the Little family adopts an adorably spunky boy named Stuart (voiced by Michael J. Fox), who looks a lot like a mouse. Mr. and Mrs. Little (Hugh Laurie and Geena Davis) fall in love with Stuart right away, but their older son George (Jonathan Lipnicki) isn't so sure what to make of his new brother, and the family's white cat, Snowbell (voiced by Nathan Lane), devises a dastardly plan to get Stuart out of the house…permanently.