John Hopewell Chief International CorrespondentA portrait of a well-meaning man caught in events he cannot control and understands all too late, Hungarian Denes Nagy’s Berlin Competition entry “Natural Light” has a first trailer, shared exclusively with Variety by sales company Luxbox.Set in icy marshland in Russia during WWII, “Natural Light” accompanies corporal István Semetka, drafted into a Hungarian unit whose mission is to locate and kill Russian partisans hiding in the woodlands.Lodging