Cameron Douglas celebrated his father Michael Douglas and stepmother Catherine Zeta-Jones on their shared birthday with a warm family message. Michael Douglas and Catherine Zeta-Jones both celebrated their birthdays on September 25, with the Hollywood actor turning 82 and the actress turning 57.Cameron, Michael Douglas' eldest son from his previous marriage to Diandra Luker, shared a birthday tribute for the couple. He referred to Michael and Catherine as two of the "greatest people" he knows and wished them more years filled with love and happiness.Key HighlightsCameron Douglas wished Michael Douglas and Catherine Zeta-Jones on their shared birthday.Michael Douglas turned 82, while Catherine Zeta-Jones turned 57.The couple has the same birthday, September 25.Cameron described them as two of the greatest people he knows.Michael and Catherine have been married since 2000.The couple has two children, Dylan and Carys Douglas.Cameron Douglas' Birthday MessageCameron Douglas shared a heartfelt message celebrating his father and Catherine Zeta-Jones. His post highlighted the family's bond and wished the couple continued love and happiness.Cameron is Michael Douglas' son from his first marriage to Diandra Luker. Michael and Catherine later married in 2000 and have two children together, Dylan and Carys.The family has continued to share special occasions publicly over the years, including birthdays and anniversaries.Michael Douglas and Catherine Zeta-Jones Share a BirthdayMichael Douglas and Catherine Zeta-Jones have a unique birthday connection. Both were born on September 25, although they are 25 years apart.This year, Michael Douglas turned 82, while Catherine Zeta-Jones celebrated her 57th birthday. The couple marked the occasion with their own tributes to each other.Zeta-Jones shared a photograph with Michael Douglas and wished her husband a happy birthday, describing the shared day as special.Michael Douglas Shares Birthday TributeMichael Douglas also celebrated Catherine Zeta-Jones with a personal birthday message. He shared an excerpt from his upcoming memoir, One Helluva Ride, recalling the first time he saw her on screen and the impression she made on him.The memoir is scheduled to be released on October 6. Douglas' birthday tribute reflected on the beginning of their relationship and their long marriage.Michael Douglas and Catherine Zeta-Jones first met in 1998 and married in November 2000. They have since welcomed two children, Dylan and Carys.Michael Douglas and Catherine Zeta-Jones' FamilyThe Douglas family includes Cameron, Michael's son from his earlier marriage, and Michael and Catherine's children Dylan and Carys.Cameron's birthday message brought attention to the family gathering around Michael and Catherine's shared birthday. His tribute also reflected the close family connection between the Hollywood couple and their children.Michael Douglas and Catherine Zeta-Jones have frequently marked important family occasions publicly, from birthdays to wedding anniversaries. Their 25th wedding anniversary was celebrated in November 2025.A Special Birthday for the Hollywood CoupleThe September 25 birthday is particularly notable for Michael Douglas and Catherine Zeta-Jones because they celebrate it together every year.Their 2026 birthday celebrations included messages between the couple as well as Cameron Douglas' family tribute. The occasion also comes ahead of the release of Michael Douglas' upcoming memoir, which looks back at his career and personal life.