Diane Keaton’s love life was as fascinating as her film career. Though she never married, she shared deep connections with some of Hollywood’s biggest names — Al Pacino, Woody Allen, and Warren Beatty — each leaving a lasting mark on her life.

Her romance with Al Pacino began on The Godfather set. She adored his charm and brilliance, but when he refused to marry, she ended things, later calling him “the one who got away.”

With Woody Allen, Keaton shared a creative and emotional bond that shaped both their careers. Their partnership produced classics like Annie Hall, and their friendship has remained strong for decades.

Warren Beatty, whom she once admired from afar, became a passionate and complex love. Working together on Reds was one of her most meaningful experiences, and she credited him with helping her grow as an artist.

Each man brought out a different side of her — Pacino stirred her heart, Allen shaped her artistry, and Beatty inspired her boldness.