The hero stands on stage in high-definition 3-D while doubled on a crude pixel screen in Billy Lynn's Long Halftime Walk. Alien ships leave Earth by dissolving at the conclusion of Arrival. An illusory death spiral in Vertigo transitions abruptly to a studio set, jolting the spectator. These are a few of the startling visual moments that Garrett Stewart examines in Cinemachines, a compelling, powerful, and witty book about...