Hi,
perhaps this a newbie question, but i've been searching around here and on the net with not much luck. If I'm producing an action sports vid for sale (profit) and I capture a sporting event that has sponsers, etc what releases would I need to cover myself? location and the particpants? none?

For whom would you be covering this event?

i woud be making a sports action video which i am self producing. No event sponsers would be invovled.