There’s a galaxy of difference between old-fashioned clever and information-age clever. Jimmy Neutron: Boy Genius is a lickety-split, madly packed, roller-coaster entertainment that might almost have been designed to make you scared of how much smarter your kids are than you. In this digital-animated gizmo, Jimmy, the outrageously matter-of-fact young brainiac, seems to have crammed all the knowledge in the world into his genial, oversize, Ace Ventura-coiffed head.
Jimmy is a new kind of cool-geek wizard, and the shiny-as-a-bubble Jimmy Neutron is packed with more nimble and ingenious gags than all two and a half hours of Harry Potter and the Sorcerer’s Stone. Jimmy, when he isn’t inventing atomic domestic gadgets, foils an attack by squishy green aliens who live in clear synthetic eggs; it’s Peter Pan meets Men in Black. Best scene: Jimmy and his pals go on a rampage of fun—to the Ramones’ ”Blitzkreig Bop.” B+