A fresh-faced blonde ingenue, Mary Stuart Masterson made her screen debut at age eight playing the daughter of her real-life father, Peter Masterson, in "The Stepford Wives" (1975). Following her less than auspicious debut (her biggest line was "Daddy, I just saw a man carrying a naked lady"), she effectively stopped working to concentrate on her education, squeezing in only an occasional TV appearance (a 1986 Robert Zemeckis-directed segment of "Amazing Stories" and in the 1980 ABC movie "City of Fear"). By age 18, Masterson had decided to follow in her parents' stead and resumed her career,