"BBC Four: What do you think the main themes were for Herzog?
Graham Dorrington: Many of his films are about a battle over nature - he calls nature “continuous murder”, which is a different perspective from what you see in most wildlife films. Most wildlife films are about lovely animals like meerkats or exploring a wonderful ecosystem. That sort of approach is so dominant that Herzog pulls back from that. I tried to get in a scene about saving the rainforest and he rejected that immediately. His idea that nature is a brutal place full of murder and cruel indifference is probably closer to what most biologists think. You see the Nosferatu elements there. I think death is always in Werner Herzog’s mind."