The Nanny Diaries (2007)

The story of the journey of 21-year-old New York University student Annie Braddock, a young woman from a working-class neighbourhood in New Jersey, struggling to understand her place in the world. Choosing to duck out of real life, Annie accepts the position as a nanny for a wealthy family, referred to as simply "the X's". She quickly learns that life is not very rosy on the other side of the tax bracket, as she must cater to the every whim of Mrs. X and her precocious son Grayer, while attempting to avoid the formidable Mr. X.

Official website: http://www.thenannydiariesmovie.com/