Sarah Polley (born January 8, 1979, in Toronto, Ontario) is a Canadian actress, singer and film director. She has starred in such films as Atom Egoyan's The Sweet Hereafter (1997) (she also contributed several songs as lead vocalist), Guinevere (1999), Go (1999), My Life Without Me (2003), and Terry Gilliam's The Adventures of Baron Munchausen (1988).
Born on January 8, 1979 in Toronto, Canada, she is the youngest of five children of Michael Polley, a British-born actor (he attended acting classes with Albert Finney in England before moving to Canada), and actress and casting director, Diane Polley, who died of cancer just before her 11th birthday. Though she was a brilliant student, she did not graduate from Earl Haig Secondary School.
Her first cinematic appearance was at the age of 4, in the role of Molly in Disney's film One Magic Christmas. At age eight, she was cast in the title role in the television series Ramona , based on Beverly Cleary's books. Though the series lasted but one season, Polley burst into the public eye the following year as Sara Stanley, star of the popular CBC television series