You can often choose one film that represents the pinnacle of an actress’ success, the movie that always follows the line “best known for her work in … ”: Charlize Theron in “Monster,” Catherine Zeta-Jones in “Chicago,” or Marion Cotillard in “La Vie en Rose.”

But what about when you can’t pin an actress down to just one movie?

Such a woman is Diane Keaton, the Academy Award-winning actress with a 40-year film career to prove it. A Los Angeles native, Keaton read from her new memoir “Then Again” Tuesday night at the UCLA Hammer Museum.

The memoir, as hinted at by the review in the Los Angeles Times, proves to be more of an insight into Keaton herself, rather than juicy behind-the-scenes Hollywood gossip. It focuses mainly on her love of photography, memories of her parents and the adopted children she is currently raising. Even the juiciest news, such as the fact that she had bulimia or stories of her love affairs with major actors like Woody Allen and Warren Beatty, is handled in her own distinct, quiet way.

Keaton first broke into the movie scene with her role as Kay Adams-Corleone in “The Godfather” (1972), where she met – and had a brief romance with – Al Pacino.

But it was the beginning of a professional and romantic relationship with actor-screenwriter-director Allen that really began Keaton’s ascent into stardom. Keaton became Allen’s muse, influencing what would become the movie both would become most famous for: “Annie Hall” (1977).

The film, which Allen said in a recent interview with The Guardian that he wrote for Keaton (her surname is Hall, and one of her nicknames is Annie), won the actress an Oscar. Her character’s clothing, largely influenced by Keaton’s own menswear style, had a huge impact in ’70s fashion and made Keaton an unlikely icon.

After ending her relationship with Allen, Keaton continued to shine in both dramas and comedies, gaining two additional Academy Award nominations for “Reds” (1981) and “Marvin’s Room” (1996), and winning the hearts of new generations with comedies such as “Father of the Bride” (1991), “The First Wives Club” (1996), and “Something’s Gotta Give” (2003).