Her father is of Irish Catholic background, and her mother comes fron the Methodist family of English descent; Keaton was raised a Methodist. Within 1969, Woody Allen cast her in his play Play It Again, Sam, which won her a Tony Award as Featured Dramatic Actress. In the period of her dog in the play, Hollywood came calling and Keaton manufactured her film debut around 1970 in the film Lovers and Other Strangers.

Her large break come while she was cast around Francis Ford Coppola's blockbuster The Godfather (1972) (she also appeared in the sequel). around this period, she became romantically included using Woody Allen & has played nonconcentric characters in many of his funny films including Annie Hall (1977) (in which she won a Academy Award for Best Actress that year), however has besides won acclamation within roles like in Looking for Mr. Goodbar (1977), ''Marvin's Room (1996), and Mrs. Soffel (1984). She late left Allen for the relationship by owning Warren Beatty, with whom she as well appeared around screen in Reds (1981) (for which she was nominated for an Academy Award and Golden Globe).

Keaton has besides proven herself as a director. She directed a 1987 documentary Heaven, a few music streaming videos for creative person like Belinda Carlisle, two TV film star Patricia Arquette, and episodes of China Beach and Twin Peaks before directing her first feature, Unstrung Heroes in 1995. She has too directed ii more flick: Mother's Helper in 1999 and Hanging Up in 2000 (which she also starred in).

Keaton, world health organization has never married, has adopted two children. Since Could 2005 she has been a contributive blogger at The Huffington Post.

Oscar appearances
Annie Hall, 1977, won Academy Award Reds, 1981, Academy Award nomination Marvin's Room, 1997, Academy Award nomination Something's Gotta Give, 2003, Academy Award nomination

Filmography
Lovers and Other Strangers (1970) The Godfather (1972) Play It Again, Sam (1972) Sleeper (1973) The Godfather: Part II (1974) Love and Death (1975) Harry and Walter Go to New York (1976) I Will, I Will, for Now... (1976) Looking for Mr. Goodbar (1977) Annie Hall (1977) Interiors (1978) Manhattan (1979) The Wizard of Malta (1981) (narrator) Reds (1981) Shoot the Moon (1982) The Little Drummer Girl (1984) Mrs. Soffel (1984) Crimes of the Heart (1986) Radio Days (1987) Baby Boom (1987) The Good Mother (1988) The Lemon Sisters (1990) The Godfather: Part III (1990) Father of the Bride (1991) Manhattan Murder Mystery (1993) Look Who's Talking Now (1993) (voice) Father of the Bride Part II (1995) The First Wives Club (1996) Marvin's Room (1996) The Only Thrill (1997) The Other Sister (1999) Hanging Up (2000) (also director) Town & Country (2001) Plan B (2001) Something's Gotta Give (2003) Mad Money (2005) (currently inside pre-production) The Family Stone (2005) (currently inside pre-production) Untitled Diane Keaton Project (2005) (currently announced begin of production) (as well producer) Da Vinci's Mother'' (2005) (currently announced start of production)