There is a remarkable scene that repeats throughout history in Cloud Atlas , the 2012 film based on the novel by David Mitchell. Sonmi-451, a clone woman serving the upper class, realizes she must revolt. She says that the systems that carry out oppression “must be turned down.” She adds: “We must all fight and if necessary die to teach people the truth.” Days pass, and the revolution fails. Moments before her execution, Sonmi-451 is asked by a historian working for her corporate captors