Paul Rudd thinks parenthood is ''the hardest job''.
The 'Wanderlust' star has two kids Jack, seven, and two-year-old Darby with wife Julie and although he loves being a dad, he admits it is not always easy.
He said: ''It's ... you know ... Marriage and parenthood. It's the hardest job you'll ever like. It can be tough. It's like, 'Is this really the way we're supposed to do this?' But they're great.''
Paul, 42, also admitted he is slowly coming to terms with ageing although he isn't too happy about it.
He told Britain's Glamour magazine: ''I feel like, not really a crisis, more like a slow moving monolith of decay. And a subtle careening towards breakdown. No, in my forties I feel very different but it's less to do with those age markers and more to do with life experiences. Having a kid and then also the death of a parent [Paul's father died in 2008], those two things make me feel older than I used to. I don't sweat ageing but there are things that are a drag. I mean I won't be wearing those T-shirts that say '50 and Fabulous'.''