Margot Kidder

She is now an advocate of orthomolecular medicine as a treatment for bipolar disorder. She was nominated for best actress in 2000 for her role in "You Can Count on Me.". She is also known for having bipolar disorder which led to a widely publicised breakdown in 1996. She also played Mary Ann Singleton in the television adaptations of Armistead Maupin's Tales of the City books, and had a bit part in 2002's The Laramie Project. Margaret Ruth Kidder (born October 17, 1948), better known as Margot Kidder, is a Canadian actress, best known for her role as Lois Lane in the 1978 movie Superman and sequels. She has had major roles in such films as Mystic River and The Truman Show. Laura Linney (born February 5, 1964) is an American actress.