Kids love him. TV execs adore him. Sheesh, it's enough to make out-of-work kiddie-show host Rainbow Randolph puke purple. Ever since that plush, fuchsia-hued, platitude-spouting Smoochy the Rhino started Jiggy Ziggy-dancing in Randolph's time slot, he has just one mad goal: turn the rhino into a dead duck. Danny DeVito takes the rhino by the horn to direct and costar in this gleefully twisted skewering of children's TV. Robin Williams, his famed wit set at warp, plays ranting Randolph. Edward Norton is the high-minded goodnik whose righteous-rhino creation becomes a sensation, and Catherine Keener portrays a jaded exec who likes kid-show hosts in, let's say, a grown-up way. Say nite-nite, rhino!