A spunky performer with a mass of curly reddish hair and a sweet, innocent air, Jean Louisa Kelly first came to the attention of filmgoers as John Candy's bratty niece, appalled by his antics, in the John Hughes comedy "Uncle Buck" (1989). She further solidified her standing as a rising starlet as the dewy-eyed student who develops a crush on her music teacher (Richard Dreyfuss) in "Mr. Holland's Opus" (1995). A stage veteran, Kelly has also amassed an impressive resume with a wide array of small screen work. While it would seem the musical theater appeals most to her (she has variously been