Diane Keaton at the Cannes Film Festival in 1987.

Woody Allen and Keaton, his girlfriend at the time, in London in 1970.

Keaton and Al Pacino in the 1972 film “The Godfather.”

Tony Roberts and Keaton on the set of the 1972 film “Play It Again, Sam," written by Allen and directed by Herbert Ross.

Allen and Keaton in “Sleeper” in 1973.

Keaton during the filming of “Love and Death.” The film was written and directed by Allen, who also starred in it.

Keaton with Allen in New York around 1970.

Keaton with James Caan, Michael Caine and Elliott Gould in the 1976 film “Harry and Walter Go to New York.”

Keaton with Allen in “Annie Hall.”

Keaton starred again with Allen in “Manhattan” in 1979.

Keaton at the 1978 Academy Awards, where she won the Oscar for best performance by an actress in a leading role for “Annie Hall.”

Keaton and Warren Beatty at the 54th annual Academy Awards in 1982. They co-starred in the movie “Reds” and were both nominated for awards.

Goldie Hawn, Keaton and Bette Midler at the premiere of “The First Wives Club” in Los Angeles in 1996.

Keaton with Jack Nicholson at the 79th Academy Awards in 2007.

Keaton at a news conference for “Something’s Gotta Give” in 2003.

Keaton at the American Film Institute Gala honoring her in 2017.