Does anyone know this movie?

Alright... this is going to be a bit vague, but it's the best I can do. All i know is, the movie came out in the past 2 or 3years. Two of the stars in the movie are Mandy Moore and the mom from Gilmore Girls. On the movie trailer you see mandy moore walking up to a guy and starts annoyingly laughing and snorts. I'm dying to figure out what this movie is... please help. I believe it's about a family of sisters and a mother. Again, please help!