Key Takeaways

The cause of death for Oscar-winning actress Diane Keaton was revealed Thursday

She died Saturday at age 79

Directors and collaborators remembered her for her creativity and brilliance

FRIDAY, Oct. 17, 2025 (HealthDay News) — Oscar-winning actress Diane Keaton, whose decades-long career made her one of Hollywood’s most beloved stars, died from primary bacterial pneumonia , according to a death certificate made public Thursday.

The certificate listed no underlying causes of death, and said no autopsy was performed. Keaton died Saturday at age 79.

She appeared in more than 100 films and television shows, earning praise for both her comedic and dramatic performances, The New York Times reported.

She won the Academy Award for Best Actress in 1978 for her role in "Annie

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