I thought this movie was just a wonderful movie. I loved how they show the nice nanny and the evil mother who lies, and is always too busy. I also love how you can see the softer side of her when she cries and the end of the movie where she finally is having fun with the boy.
Mentioning the end, that is what I especially loved. When the nanny told off her employer and convinced her to have fun with the boy, and that he is not going to be young forever and that he needs a mother who is there for her. Not some complete stranger who he has to learn to love all over again every time there's a new one.
That's not what exactly she said but you get the idea. I recommend this movie to everyone.