If there is one job that I don't want - ever - is to be a nanny, despite the fact that I love children. A child has a head of its own and often tends to believe that she or he is smarter than the rest of the world. Plus, when you are taking care of someone else's child, they are ready to kill you if something happens. Louise Woodward, the British au pair was convicted for the death of Matthew Eappen and his parents literally wanted her to be sentenced to death. In this movie, Scarlett Johansson ha a life of her own, so the movie gets really interesting.