Technically, it's wonderful. Cuarón's filming never disappoints me, really. But I fail to see the point of the whole film. What is it about? It feels like an oportunity to use 3D technology, although the CGI is flawless and POV shots are a very nice touch. The "emotional" part is commonplaced and unoriginal. Alfonso, you're a grower, not a shower. This film that won't live long in the memory.