Catherine Zeta-Jones and Carys Zeta Douglas WireImage; Courtesy of Carys Zeta Douglas/Instagram Catherine Zeta-Jones’ daughter, Carys, was her mirror image as she slipped into her mom’s 25-year-old dress for her 21st birthday party. Carys looked stunning as she celebrated the milestone age in the Ungaro pink slip dress with lace and roses famously worn by…