The signature hat, the wit, the nervy charm. Diane Keaton’s singular screen presence helped define a half-century of American movies.

Click here for a new, updated story: Cause Of Death Revealed For Iconic Actress Diane KeatonA family spokesperson confirmed to People on Saturday afternoon, Oct. 11, that Keaton died in California at age 79, and requested privacy for the family. Further details, including a cause of death, were not disclosed.

Keaton won the 1978 Academy Award for Best Actress for "Annie Hall," the Woody Allen classic that cemented her as a cultural touchstone and style icon. She also delivered pivotal performances as Kay Adams-Corleone in Francis Ford Coppola’s "The Godfather" trilogy and earned additional Oscar nominations for "Reds," "Marvin’s Room," and "Something’s Got

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