L'effet Helsinki : 1975, l'acte final et la fin du rideau de fer

A widely held theory known as “the butterfly effect” maintains that seemingly small actions, like a butterfly flapping its wings on one side of the planet, can actually have tremendous impact at a distance, such as the ability to affect weather patterns on the other side of the globe. And, as this informative and entertaining documentary from writer-director Arthur Franck shows, it’s possible to s…