Stars including Mariah Carey and Nick Cannon, Heidi Klum and Seal, and Fergie and Josh Duhamel have all staged ceremonies to renew their commitment to each other.
But Stiller is adamant he won't be walking down the aisle again with his wife of 10 years Christine Taylor - because married couples should keep the promises they make at their first wedding.
He tells America's OK! magazine, "If your relationship is in good shape and you're communicating with each other and you're close, then that's what's important. The vows thing is the vows (sic), but I think it has to be implicit that you meant it the first time.
"For me, laughter is such a huge part of a relationship. My wife has a great sense of humour. 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."