This might sound a bit silly on hear, but i've only ever had problems with video crews thinking they're running the show. There's nothing worse than turning up at a set-up perfomance for a promo photoshoot, only to find out their managment are trying to kill two birds with one stone, and have hired another video crew to shoot a video at the same time.

I did the whole introducing thing, and the "If I get in your way..." etc, Thought all was going to be fine, but the buggers got up on stage and 'mingled' there with them as the band performed, and they then refused to get out the way, and sometimes seemed to intentionally stand right in front of me. This resulted in lots of individual band member shots with creative framing and a few group shots with camera guys in their faces (I don't think they had heard of zooming).

The annoying thing is that the bands manager knew that I run a Promotional Video and photography business, and we often do both stills and vid at the same time with good planning/arrangements to not get in each others way.

The Moral of this story is to 'team up' with a photographer for this kind of thing - Also a good way to bring in extra business, 'you recomend me, I'll recomend you', and you'll also be able to work better with each other, knowing who wants to do what when.