Al Pacino's biggest regret was never marrying Diane Keaton, according to the Daily Mail.
"I know he will forever regret he didn’t make his move when he had the chance,"
a source told the Daily Mail. Pacino and Keaton played a married couple in The Godfather trilogy and had an on-and-off affair from 1971 to 1987.
"Looking back, Al admits the love of his life was Diane who he’s always called, ‘an amazing woman’,"
a friend of Pacino's told the Daily Mail. Author's summary: Pacino regrets not marrying Keaton.