Ben Stiller claims laughter is the best way to a successful relationship.

The 44-year-old actor admits his relationship with wife of nine years Christine Taylor works because the pair share a sense of humour.

He said: "For me, laughter is such a huge part of a relationship. My wife has a great sense of humor. What I like is to try to make her laugh.

"Sometimes she laughs at things that I take too seriously, which I find helpful in keeping me grounded. I used to be a workaholic, but now I'm happy at home. For the first time I'm beginning to feel grown up."

Ben also admits the follow-up to comedy movie 'Zoolander' has been worked on for some time because he wants to make sure the sequel is as funny as the first film.

According to, he said: "We've been working on it on and off over the last six or seven years. The biggest hurdle for me personally was that Drake Sather, who created the character, passed away. He was a good friend and the lump for me was it's hard to imagine doing it without him.

"Now my buddy, Justin Thoreau, has committed to directing and writing it. So I'm excited and I think it's going to happen. I want to be able to do something that lives up to the first one. That's the challenge."