Excellent thriller, starring two great actresses. One, 41 at the time of filming, has had decades to establish her 'street cred' as an actress, to the tune of four Oscar nominations and one Oscar win. The other is a lightweight by comparison, and has only been nominated for one Oscar. But then she's only 16. Cate Blanchett is good in this movie, but Saoirse Ronan is much, much better. Imagine that.
http://www.youtube.com/watch?v=1zd4zGt13IE