A gifted and likable performer, Diane Keaton proved her versatility in the 1970s, starring opposite then-paramour Woody Allen in a series of comedies (including "Sleeper" 1973 and "Love and Death" 1975) and injecting some humanity into Francis Ford Coppola's dark vision of the "Godfather" trilogy (1972, 1974, 1990) playing Kay Adams Corleone. A natural, relaxed actor with a placid core and an air of the ordinary about her, she was equally effective playing bewildering or bewildered modern women. "Annie Hall" (1977), for which she won a Best Actress Oscar, was the best showcase for Keaton's