"Dawn" is not just a good genre movie or a good summer movie. It's a great science-fiction film, full-stop, and one of the year's very best movies so far.

Dawn of the Planet of the Apes manages to do at least three things exceptionally well that are hard enough to pull off individually: Maintain a simmering level of tension without let-up for two hours, seriously improve on a very good first entry in a franchise and produce a powerful humanistic statement using a significantly simian cast of characters.

An altogether smashing sequel to 2011′s better-than-expected “Rise of the Planet of the Apes,” this vivid, violent extension of humanoid ape Caesar’s troubled quest for independence bests its predecessor in nearly every technical and conceptual department.

There's evident patience and intelligence to the filmmaking all over, as well as an engagement with genuine ideas about diplomacy, deterrence, law and leadership. However often it risks monkey-mad silliness, it's impressively un-stupid.

Just as 2011's Rise of the Planet of the Apes surpassed expectations, so this sequel delivers on its promise and leaves us wanting more – which we'll almost certainly get.