How To Change The World (Also Known As: Cómo cambiar el mundo ) is a Documentary Adventure Biography film directed by Jerry Rothwell and written by Jerry Rothwell . It released on 9 September 2015 (UK) . The film stars Bill Darnell, David Garrick, Bobbi Hunter . In 1971, a group of friends sail into a nuclear test zone, and their protest captures the world's imagination. Using never before seen archive that brings their extraordinary world to life, How To Change The World is the story of the pioneers who founded Greenpeace and defined the modern green movement.