With one miraculous flourish of its wand, the franchise has restored the essential magic to the Potter legend – which had been starting to sag and drift in recent movies – zapping us all with a cracking final chapter, which looks far superior to CS Lewis's The Last Battle or JRR Tolkien's The Return of the King. It's dramatically satisfying, spectacular and terrifically exciting, easily justifying the decision to split the last book into two.[Guardian]