'I wanted to do pulpy, hyper-violent action': Keanu Reeves on his novel with China Miéville and the afterlife of The Matrix

Keanu Reeves has a reputation to maintain as one of the nicest, humblest guys on the Hollywood A-list, and maintain it he does. Grizzled of beard, spiky of hair, in a V-neck T-shirt under a dark suit teamed, oddly, with chunky brown hiking boots, it's Reeves - rather than the anticipated team of flunkies - who sets about moving side tables and pouring everyone glasses of water as we begin our interview in a suite in a Fitzrovia hotel. He's here with the writer China Miéville to talk about their collaboration on Reeves's first novel, The Book of Elsewhere, and…