War photographer Erik Poppe's A Thousand Times Goodnight turns camera on his own story

Erik Poppe's film about a warzone photographer torn between work and home is drawn straight from his own life.

"Even if we're almost drowned by images, with messages trying to reach us all the time, there's no doubt that a single image in a newspaper or somewhere else can actually affect something," says Norwegian war photographer-turned-filmmaker Erik Poppe.