Pandora's Promise is a 2013 documentary film about the nuclear power debate, directed by Robert Stone. Its central argument is that nuclear power, which still faces historical opposition from environmentalists, is a relatively safe and clean energy source that can help mitigate the serious problem of anthropogenic global warming.The title is derived from the ancient Greek myth of Pandora, who released numerous evils into the world, yet as the movie's tagline recalls: "At the bottom of the box she found hope."