Despite how utterly bleak this story is, it kept me hanging on for some small amount of hope, but by the end, I felt empty. Again, I love a good hopeless story, but sometimes they can border on delivering a first-hand experience of serious clinical depression.
I also continue to be surprised at my visceral reaction to children in dangerous situations in movies. On a deep level, I hate it and turn away almost with the same involuntarily reaction one would have when they're about to vomit. I wonder if all relatively new parents feel this way.