Diane Keaton, the Oscar-winning star of Annie Hall, The Godfather films and Father of the Bride, has died aged 79.
People Magazine reported on Saturday US time that she died in California with loved ones, citing a family spokesperson.
A representative for Keaton could not immediately be reached.
Keaton, who appeared in more than 60 films, including The Godfather trilogy, The First Wives Club and eight films with Woody Allen, stood out in Hollywood with a personal style that favoured androgynous looks, turtleneck sweaters and her trademark hats.
She earned Oscar nominations for best actress for her portrayal of US journalist Louise Bryant in the 1981 political drama Reds, as a caring aunt to Leonardo DiCaprio in the 1996 family saga Marvin's Room and opposite Jack Nicholson in the 2003