Diane Keaton was a California native who studied Drama at Santa Ana College before dropping out to study at the Neighborhood Playhouse in New York. After appearing in summer stock for several months, she got her first major stage role in the Broadway rock musical "Hair". As understudy to the lead, she gained attention by not removing any of her clothing. In 1970, Woody Allen cast her in his Broadway play "Play It Again, Sam", which had a successful run. It was during this time that she became involved with Allen and appeared in a number of his films. The first one was Play It Again, Sam, the screen adaptation of the stage play. That same year Francis Ford Coppola cast her as Kay in the Oscar-winning The Godfather and she was on her way to stardom. She reprised that role in the film's first sequel, The Godfather: Part II. She then appeared with Allen again in Sleeper and Love and Death.

In 1977 she broke away from her comedy image to appear in the chilling Looking for Mr. Goodbar, which won her a Golden Globe nomination. It was the same year that she appeared in what many regard as her best performance, in the title role of Annie Hall, which Allen wrote specifically for her (her real last name is Hall, and her nickname is Annie), and what an impact she made. She won the Oscar and the British Award for Best Actress and Allen won the Directors Award from the DGA. She started a fashion trend with her unisex clothes and was the poster girl for a lot of young males. Her mannerisms and awkward speech became almost a national craze. The question being asked, though, was, "Is she just a lightweight playing herself, or is there more depth to her personality?". For whatever reason, she appeared in but one film a year for the next two years and those films were by Allen. When they broke up she was next involved with Warren Beatty and appeared in his film Reds, as the bohemian female journalist Louise Bryant. For her performance she received nominations for the Academy Award and the Golden Globe. For the rest of the 1980s she appeared infrequently in films, but won nominations in three of them. Attempting to break the typecasting she had fallen into, she took on the role of a confused, somewhat naive woman who becomes the tool of Middle Eastern terrorists in The Little Drummer Girl. To offset her lack of movie work, Diane began directing. She directed the documentary Heaven, as well as some music videos. For television she directed an episode of the popular, but strange, Twin Peaks.

In the 1990s she began to get more mature rules, though she reprised the role of Kay Corleone in the third "Godfather" epic, The Godfather: Part III. She appeared as the wife of Steve Martin in the hit Father of the Bride and again in Father of the Bride Part II. In 1993 she once again teamed with Woody Allen in Manhattan Murder Mystery, which was well received. In 1995 she received high marks for Unstrung Heroes, her first major feature as a director.
The Godfather: Part III (1990): $1,500,000
The Godfather (1972): $35,000
1995: Chosen by Empire magazine as one of the "100 Sexiest Stars in Film History" (#46). Has adult-onset asthma. Born at 2:49 a.m. PST. Has never married. January 1996: Adopted a baby girl. She is not related to Michael Keaton, as her birth name is Diane Hall. She changed her last name to her mother's maiden name as a result of a Diane Hall already being in the Actors Guild. According to her, Michael Keaton had a similar problem with his natural name when entering the Guild (his birth name is Michael Douglas!), though he picked "Keaton" because he liked Diane's name. 2001: Adopted a baby boy. Children are named Dexter and Duke. Was part of the original cast of the Broadway musical "Hair" (1968). Woody Allen said of her, "In real life, Keaton believes in God. But she also believes that the radio works because there are tiny people inside it." She wanted to direct a remake of the film The Blue Angel (aka "The Blue Angel") with Madonna in the lead but the project was canceled. Was nominated for Broadway's 1969 Tony Award as Best Supporting or Featured Actress (Dramatic) for "Play It Again, Sam," a performance she recreated in the film version with the same title, Play It Again, Sam. In both her 1977 films, Annie Hall and Looking for Mr. Goodbar, The Godfather is referenced. In "Annie Hall," Woody Allen mentions the film as two men bother him for an autograph outside a movie theater. In "Goodbar", Theresa (Keaton) is seen reading Mario Puzo's "The Godfather" at a bar counter when Richard Gere approaches her. Two of her four Oscar-nominated roles were directed by her then boyfriends: Annie Hall (which won her an Oscar) was directed by Woody Allen and Reds was directed by Warren Beatty She and Woody Allen made 8 movies together: Annie Hall, Love and Death, Manhattan, Manhattan Murder Mystery, Radio Days, Play It Again, Sam, Interiors and Sleeper Created a new fashion style in the 1970s, when women all over the world started to copy her style of wearing suits and ties, first recognized by the public in Annie Hall. Woody Allen wrote her starring vehicle, Annie Hall, with her in mind. Her real name is Diane Hall and her nickname is Annie. 2006: Her performance as Annie Hall in Annie Hall is ranked #60 on Premiere Magazine's 100 Greatest Performances of All Time. Parents: Dorothy Keaton (b.1921), a housewife, and Jack Hall (b.1921, d.1990), a civil engineer. She's the oldest of four children. Diane has a brother named Randy Hall (b.March 21th 1948) and two sisters named Robin Hall (b.March 27th 1951) and Dorrie Hall (b. April 1st 1953).