Playing the dual roles of Lizzie and Isabella, bubbly, blonde Hilary Duff is adorable, if not completely believable, bopping around in a brunette wig and talking with an awkward accent. Except for scene-stealing Alex Borstein (MAD TV") as Mrs. Ungermeyer, the tenacious chaperone, all of the other actors merely skim the surface of their superficial characters. Nevertheless, I fondly remember the benign, formulaic "Gidget" films of my youth and this refreshingly wholesome drivel, directed by Jim Fall, fills much the same societal niche - with travelogue nods to "Three Coins in the Fountain" and "Roman Holiday." On the Granger Movie Gauge of 1 to 10, "The Lizzie McGuire Movie" is a silly, sudsy, sweet 6 - but if you're nine to 14 years old (i.e.: really into Lizzie and her animated alter-ego), you're gonna love it.