Effectively Shooting Behind The Scenes

I feel like a common mistake photographers make when shooting behind the scenes is trying to be too invisible to the talent. While it's true that you don't want the people you're shooting to be too aware of your presence for fear that they'll put on a show for the camera that feels fake you also don't want boring footage/photos. So your best bet is to try and walk that line as closely as you can, where they're still acting like themselves but also not performing for the camera. The best way to do this in my experience has been to try and build a rapport with them before you start shooting. Make them feel comfortable around you so that later when they see you filming or taking photos they feel like they can just be themselves.