Helene back to her old ways
I thought that this film was uneven, but I appreciate the fact that they didn't go the route of a cheap Hollywood ending where Helene changes her ways after being re-united with her daughter and they live happily ever after.
Instead, we're shown that Helene is still her old, neglectful, trashy self, leaving her poor kid alone as she goes out to get high and whore around. Just as would happen in reality - leopards don't change their spots.