This is a poignant, engaging film. It is not a war film, or an action film or a thriller and as such I think the ratings have illustrated that.
It is a well told story. A true story. Some reviews have critised the way the story of the women have been intertwined but truth doesn't fit neatly into a box and for me the jarring of the stories increases its realism. The length of the film is perfect. It does not feel rushed like many films are these days. Bravo to all involved making this film.