During a rainy day, and while their mother is out, Conrad and Sally, and their pet fish, are visited by the mischievous Cat in the Hat. Fun soon turns to mayhem, and the siblings must figure out how to rid themselves of the maniacal Cat.
- Genre: Comedy, Adventure, Family, Fantasy
- Studio: DreamWorks Pictures, Imagine Entertainment, Universal Pictures
- Keyword: sibling relationship, cat, boredom, chaos, stepfather, slapstick comedy, surrealism, house party, based on children's book, goldfish, impersonation, impersonating a police officer, talking cat, talking fish, live action and animation, mother son relationship, mother daughter relationship
- Cast: Mike Myers, Dakota Fanning, Spencer Breslin, Kelly Preston, Alec Baldwin, Amy Hill