The name above the title of this slick, fluffy romantic comedy is Will Smith, playing a Manhattan date doctor who advises shy guys on how to score. But with all due respect to Smith, the moviea performance piece with an unbelievable bare-bones plotbelongs to Kevin James (star of the TV show The King of Queens) as Hitch’s main client, a klutzy accountant who’s hopelessly in love with his wealthy socialite boss (Amber Valletta). This is a mannerist mugfest for all concerned, including Eva Mendes as a gossip columnist, but like the movie as a whole, James manages to be so light on his lumbering feet that it’s only natural for the film to culminate with his goofy dancing. Andy Tennant directed the script by Kevin Bisch. PG-13, 116 min. (JR)