Although she's appeared in movies as diverse as The Godfather, Reds, Mrs. Soffel, and Something's Gotta Give, Diane Keaton is mostly thought of as the quintessential seventies woman she personified in many of the movies she made with Woody Allen, especially Annie Hall.
The same year that masterpiece came out, 1977, Ms. Keaton also starred in Looking For Mr. Goodbar, about a reserved teacher that hangs out in bars at night and becomes sexually adventurous in search of the perfect man, which summed up the dark side of 1970s popular culture.
Although she turned 65 in January 2011, Diane Keaton is one Baby Boomer elder who's not likely to retire any time soon. :-)
And she always has good fashion sense. :-)