Michael Douglas and Catherine Zeta-Jones, who've been married for almost 20 years, have two look-alike kids. The duo, who have to be one of Hollywood's favorite couples, are parents to son Dylan and daughter Carys. For the most part, their kids have kept a lower profile, although many have noticed that Carys now looks remarkably similar to her mother. The teenagers have their own interests, from fashion to racing and more, and their Instagrams are proof of their unique personalities — and their tight sibling bond. Here are a few things to know about both of Michael and Catherine's kids.