1967: Katharine Hepburn

Katharine HepburnSpencer Tracy
GUESS WHO'S NOT COMING? Katharine Hepburn’s best actress win for "Guess Who’s Coming to Dinner" (1967) was a surprise to the Oscar night audience, but Hepburn (shown with costars Katharine Houghton and Spencer Tracy) was not there to appreciate the collective gasp when her name was read. Though... File photo