After reading the reviews here I wanted to put in my own 2 cents. This movie is basically about being a parent in a modern age. There are three story lines, one about a nurse in NYC, one about her husband, a computer geek with lots of money, and one about about their nanny.
The one thing the woman, the man, and the nanny all have in common are the sacrifices they make for their kids. The man and woman both have very successful jobs, and the nanny from the Philippines works in the US to earn money for her kids back home. However, the sacrifices they make are so extreme that each person becomes detached from the very reason why they made these sacrifices in the first place: Their children.
The film presents us with a critical portrayal of this lifestyle, and as such in the end this is a tragedy.
This is an excellent film, highly recommended, especially for those of us who must balance work and family life on a daily basis.