Wow, this an excellent portrayal of depression, and I'm sure it'll resonate with so many mothers/wives out there. It is so good, so realistic and recognisable, it was very difficult to watch at times. Gemma Arterton should be applauded for her work here.
Unfortunately I felt the narrative too simplistic and the ending unsatisfying. They've also gone for minimal dialogue, which whilst I'm sure some would argue you don't need as everything is written on their faces, I personally found it much too minimal.
In summary - amazing and moving portrayal of depression and helplessness in the acting, but ultimately a not wholly satisfying film to watch. 7/10