Enjoyable but not as diverting as the book. The book is actually a bit slow, but has depth and character development. The movie is also a bit slow but lacks depth. I hate to say it, but the Rose Byrne is such a sad weak sack that she is not sympathetic or interesting. Ethan Hawke and Chris O'Dowd are very well cast, as are all of the children. I would have liked to have seen more of them, especially the twin boys.