On the American Film Institute's list of Top 100 U.S. Love Stories, six of the movies star Katharine Hepburn, more than any other actress on the list. So it's fitting that her final movie, 1994's Love Affair, tells the tale of a budding romance, and stars famous lovebirds Warren Beatty and Annette Bening. It's also fitting that in addition to her immense talent, Hepburn was known for a razor-sharp wit, a willingness to speak her mind freely, and a decades-long love affair with costar Spencer Tracy. The actress, who earned four Oscars (a record for any actress), starred on the big screen for more than 60 years before retiring in the mid-1990s. Love Affair, in fact, was the only big-screen project she embarked on in the '90s. Hepburn died at home in 2003, at age 96.