Rote comedy about a scientist who, in a pinch, is implanted with a human embryo. The script is insightful and there was a fair amount of research placed into the science behind it. Arnold and his belly both seem a little plastic. Emma Thompson's performance is a fumbling researcher is enjoyable. Danny DeVito starts off in familiar, but toned down territory. It would have been more interesting to give him more development. No real surprises here, but nothing special either.