It’s fascinating watching the creative process. Katherine Hall and I had finished for the day, we had talked of many subjects, but had nothing strong completed. We weren’t dispirited, though, as we would continue the following day. We parked up, to look at a potential location, and Katie stopped… staring at the road markings in a car park, it had triggered something. We quickly shot some bits, and both knew that that was what the day had been about. It unintentionally provided us with something that contained many of the themes we had discussed. Where did that come from?