Jamie Lee Curtis (born November 22, 1958) is an American actress. Although she was initially known as a "scream queen" because of her starring roles in many horror films early in her career such as Halloween (Halloween (1978 film)), The Fog, Prom Night (Prom Night (1980 film)) and Terror Train, Curtis has since compiled a body of work that covers many genres. Her 1998 book, Today I Feel Silly, and Other Moods That Make My Day, made the best-seller list in The New York Times. She is married to actor Christopher Guest (Lord Haden-Guest (Baron Haden-Guest)) and, as the wife of a lord, is titled Lady Haden-Guest, but she chooses not to use the title when in the United States. She is currently the spokeswoman for Activia. She is also a blogger for The Huffington Post online newspaper.