Whilst the direction, filming and production of this movie are all professionally fine, the story has GOT to be the most frustrating I have ever seen! Guaranteed to make the sanest viewer totally paranoid about ever having children (fortunately, I was all done with that years ago!). Steve Martin is a star but, when one considers that he doesn't actually have any children of his own, the very fact that he accepted this part gives cause for head-scratching. This film should be compulsory viewing for any two people contemplating being irresponsible enough to want to replace themselves with more than the two that they are. 6 out of 10 is for technical professionalism. For the story, minus 20! The Chinese sure have got it right!