Her passing has had people in my office singing "Georgy Girl," the '66-'67 hit song from Redgrave's breakthrough film. How time passes: People.com refers to her "Georgy Girl" character as a Bridget Jones prototype. Judge for yourself from this blurry trailer:
She starred in a number of TV series, including "House Calls" and "Chicken Soup," but for the most part they weren't very good. She was very funny in Woody Allen's "Everything You Always Wanted To Know About Sex," and I liked her work in "Gods and Monsters." But her screen career seems to have consisted of a lot of miscalculations ("The Happy Hooker"), art films and voice work.
But she was apparently an impressive presence onstage, and wrote two plays in which she also acted. Her official Web site is here.