imdb: http://www.imdb.com/title/tt0430770/

Plot: The central character is clothing designer Mary Haines, who lives in a beautiful country home with her wealthy financier husband and their 11-year-old daughter. Her best friend Sylvie Fowler is the Editor of a prominent fashion magazine, a woman who dictates the latest in taste and style for New York City fashionistas. When Mary's husband becomes involved with Crystal Allen, a perfume salesgirl in Saks Fifth Avenue, her friendship with Sylvie is put to the test. Everyone in their close-knit circle of friends, including the ever-pregnant Edie Cohen and author Alex Fisher, begins to question their loyalty to each other and their romantic involvements.

Child cast:

India Ennenga - Molly Haines

p.s man she looks like Saoirse Ronan

Hmm, yes, she does.