“We’re not talking about a couple of lorries and a caravan here, we are talking of a sizeable portable village, an entire community bringing several hundred people, along with lights, generators, cameras, cranes, dolly equipment, wardrobe, props, dressing rooms, catering wagons – and then all of these need to access the site and not be parked up a couple of miles away. “There are a lot of practical problems which need to be taken into account when choosing a location. What it looks like on camera is important but access is also very important. You need good access. I have had to turn down spectacular locations simply because they were too difficult to get to.”