Children of Men founders in its latter moments -- not a lot, but enough. Its failure is less one of plot than of something deeper, a composing idea to undergird the plot.

A film that has much to recommend it, not least the proof it offers, as if any more were needed, that Alfonso Cuarón is one of the most visually inspired directors working today.

Alfonso Cuaron stages some terrific set-pieces, and the production designers deserve credit for making London in 2027 look like the grunge capital of the world, ie, like now, only more so. One small problem: I didn't believe any of it.

The acting is exceptional, the cinematography is hauntingly beautiful, and every frame pulls you deeper into its unforgettable dystopian world.