With time, comes decay. It's the way of the world. Houses will eventually crumble. Food goes bad. Bonds break. Try as we might to convince ourselves that things will remain as special and brilliant as they were in the past, eventually we have to step up and face the music, that everything changes, and, often, it is not the change we saw coming or the change we wanted. This mindset is the centerpiece of Blue Valentine, a deconstruction of a love that focuses on only two moments in the relationship, the beginning and the end. It's an incredibly difficult movie to muster, but it's that reason exactly that makes it so good.

