I think the more accurate exposure the better. There is another documentary from a few years back (Channel 4 did it, they usually do any of the 'wierd stuff' they can get away with) called 'Fetishes' where a documentary maker followed the lives of the staff of a professional dungeon in New York. It focussed mainly on the professional side of BDSM and not the lifestylers so it was quite biased from that point of view but it was interesting to see. I was actually quite amazed at two things:

1) The complexity of the set up in the dungeon. They had many rooms in a block in the middle of new york with receptionists and admin staff and staff/dressing rooms for the Dommes. Not seen anything like that in UK in a professional dungeon. Most of the ones here are in normal suburban houses dressed to look like dungeons.

2) The scene where some of the Mistresses were using the internet to try to find dates because they found it very difficult to find someone who wasn't intimidated by their personality.

I still have it on video somewhere... they showed a scene where one of the Mistresses was giving a session to one of her regular lifestyle slaves and she was definitely in subspace. They were trying to interview her while she was being whipped and she may as well have been doped up on morphine for all the sense they were getting from her