Cannes 2022: Ukrainian director Sergei Loznitsa on the lessons of history

Is it ever morally acceptable to exploit civilians as a weapon of war? That's the question at the heart of Sergei Loznitsa’s latest documentary, "The Natural History of Destruction". The Ukrainian filmmaker tells us how, on February 24, his country was thrust 80 years into the past as the Russians invaded, reviving painful memories of World War II. We also discuss President Volodymyr Zelensky's visibility on the world stage and the role of festivals like Cannes when it comes to sending a strong political message to the world.