Catherine Zeta-Jones celebrated her son Dylan Douglas's 24th birthday with a heartfelt tribute on Instagram, sharing a nostalgic video of him as a baby, accompanied by John Lennon's song 'Beautiful Boy (Darling Boy)'. In her caption, she expressed immense joy in being his mother, stating, 'The joy and love you give me every day is insurmountable.' Michael Douglas also marked the occasion with a post, sharing a photo of Dylan and highlighting his pride as a father. Both parents reflected on their familial bonds, with Zeta-Jones humorously referring to Dylan as the 'best production' they've ever been involved in. The couple, who married in 2000, also have a 21-year-old daughter, Carys, and Douglas has an older son, Cameron, from a previous marriage. Zeta-Jones continues to balance her family life with her acting career, currently starring in the Netflix series 'Wednesday'.