By Jevon Phillips and Patrick Kevin Day Porn proper: The cover girl for Ivory Snow soap got cast in the adult film "Behind the Green Door" when the producers noted her resemblance to Cybill Shephard. She crushed racial barriers by being the first white woman to have sex on screen with an African American man (porn actor Johnny Keyes). Mainstream: During his early, low budget years, Canadian filmmaker David Cronenberg cast her in his horror film, "Rabid," in which she plays a vampiress who turns her victims into rabid zombies. Her porn background prevented her from having a major Hollywood career, but she had made a living in recent years starring in a series of independent productions. She died April 12 in her Canyon Country home.