Using research from thousands of Australian households, the research found that couples who were closer in age were more in sync on a number of life-changing decisions such as when to have children and spending habits, which make them more compatible in the long run.
The ladies, who started dating in 2004, don’t dwell on the 15-year gap, though – they’re too busy working and raising their menagerie of pets, including two dogs, five cats, four horses, and two cows.
The Oscar winners tied the knot in 2000, when she was 31 and he was 56, and have remained solid despite a few tough years.
In 2011, Douglas was diagnosed with throat cancer (now in remission), and Zeta-Jones revealed her struggle with bipolar disorder.
Annette Bening & Warren Beatty Age Gap: 21 years With names like Natalie Wood, Joan Collins, and Madonna, among his conquests, no one thought legendary ladies’ man Warren Beatty would ever settle down. The pair met while working on "Bugsy" in 1991, when he was 54 and she was 33.
"It was something that we both took very seriously very quickly," says Bening.