Written and directed by Jalmari Helander, SISU is a wild symphony of violence that is bound to delight fans of the action genre. Set during the final days of Second World War, SISU tells the story of Aatami, a grizzled prospector who lives a solitary life. When he encounters a group of Nazis who steal his gold, Aatami unleashes his fury to retrieve his prize. In this 1on1, we speak to Helander about our love of revenge films and the line between violence and courage.