Michael Douglas and Catherine Zeta-Jones

The ‘Wall Street’ star, 79, is a whole quarter of a century older than the 54-year-old ‘Chicago’ star, who he has been married to since 2000.

The couple have two adult children, son Dylan, 23, and daughter Cerys, 20.

Michael - who briefly separated from Catherine in 2013 - said: “True love takes work.”