In "The Nanny Diaries" she plays Annie Braddock, a college student taking care of a rich family's kid
The kid's 
Upper East Side mom finally catches up to the tyke and, before you know it, ... 
She must take care of Mr. and Mrs. X's mini-monster of a son, Grayer, be at Mrs. 
X's beck and call 24-7, and watch the family's dysfunction slowly eat them all 
alive.