A Brief History of Time: Errol Morris turns his camera on one of the most fascinating men in the world: the pioneering astrophysicist Stephen Hawking, afflicted by a debilitating motor neuron disease that has left him without a voice or the use of his limbs. An adroitly crafted tale of personal adversity, professional triumph, and cosmological inquiry, Morris’s documentary examines the way the collapse of Hawking’s body has been accompanied by the untrammeled broadening of his imagination.      …