I think that during The filming of The Godfather 1, she was just getting involved with Woody Allen. Then later became involved with Warren Beatty, and then Pacino. I recall that it was right before or around the time of GFIII that her and Pacino became involved.

According to her biography Keaton rose to fame as the paramour of Al Pacino's Michael Corleone in the 1972 blockbuster The Godfather. That same year, she and Woody Allen -- had become romantically involved off-screen. However, when the couple separated, Keaton began a romance with Warren Beatty, with whom she co-starred in the 1981 epic Reds.


Don Cardi cool


Don Cardi cool

Five - ten years from now, they're gonna wish there was American Cosa Nostra. Five - ten years from now, they're gonna miss John Gotti.