Watching the video linked here. I didn't quite get how they were capturing the angle where it was in front of and above the player as if fixed at the same distance in front of and above the player, allowing the player to rotate without the camera following them. It was if it was attached to the player's helmet by a track containing well oiled ball bearings to allow the player to spin without the camera going with them.
I don't understand how they got those angles either. Can someone explain?