Then take Catherine's advice! Catherine Zeta Jones recently sat down with OK! Magazine to talk about marriage, work, kids and more. Check out her advice on marriage and everything else below.
How do you keep that spark alive in your marriage?

Well we're kind to each other. We love each other very much. We have a lot of fun - ” a lot of fun - ” together. I lucked out big time.

You just celebrated your birthday - ” Did you do anything special?

We were in Bermuda and we had a big family munch and then we went out to dinner. It wasn't a biggie. It wasn't a big celebration. But when I turn 40, that's when I'm going to have a huge bash!

Between work and children, do you ever feel like it's all too much?

We take time out for ourselves. It's very important so that in 20 years we don't go, "Remember me? I'm married to you."

Who have you noticed the kids take after more: you or Michael?

I see a lot of myself in both of them to the point where, with my daughter, I can read her like a book. She's a mini me. I think they're both a real mix between me and Michael. I think Dylan looks more like me and Carys is a mix of both.