An Irish-born stage actress often (to her dismay) compared to Vanessa Redgrave, Fiona Shaw has been making inroads onscreen as well since the late 1980s. Intense and fiercely intellectual off-stage and on, this statuesque brunette with a great aquiline profile graduated from the Royal Academy of Dramatic Art in 1982 and promptly made her debut in "Love's Labour's Lost". Since then, she has turned in one powerful--sometimes controversial--stage performance after another, including Celia in "As You Like It" (1985), Erika in "Mephisto" (1986), a near-psychotic Katherine in "The Taming of the