In 1992, this actress played Liz, the on again-off again girlfriend of Robert Redford's Bishop character in Sneakers. In the film Independence Day, this actress played first lady Marilyn Whitmore who later dies after unsuccessfully attempting to escape from Los Angeles, but not before meeting up with Will Smith's wife. In Donnie Darko, she was Donnie's mom. Name this actress whose more recent sci-fi credential saw her play the suddenly promoted Secretary of Education, leading a convoy of ships containing the last of her people as they search for a mythical "Earth". She has been twice Oscar nominated, including for her role as Stands With a Fist in Dances With Wolves.