I have some experience of fly on the wall documentarys. I can tell you that the PR department were over it like flies on a rotting corpse, I made sure the staff that were even close to filming were staff I was happy would show our business in a positive light. I had no right at all to be involved in editing of the footage used other than an agreement it must fairly reflect what was going on. However I did have the absolute right to decide what, where and when filming could takeplace. I watched a few episodes of the Dubai airport show, and like most of that type you saw the same half dozen characters over and over again. Not random, they would be six chosen by Dubai airport/Emirates knowing they would be reflected well. They did not film the other 5994 staff!