I don't know how it works in other countries, but here you need to sign for release of footage where you are recognisable, unless it is a shot where you just happened to wander in like at a footbalmatch or in a large group or crowd. But for interviews or interaction with cameras present you need to sign a release form. We had to for robotwars as well, which also allows them to broadcast our footage if we colonize other planets. 
Best regards,
Leo van Miert
Horsepower is how hard you hit the wall --Torque is how far you take the wall with you
Leo van Miert
Horsepower is how hard you hit the wall --Torque is how far you take the wall with you
