Interessante raccolta dietro le quinte:
http://www.youtube.com/watch?v=zWBHO8FIP8Y#ws
http://www.youtube.com/watch?v=VVVozYAvPkk#ws
http://www.youtube.com/watch?v=la1--kuU_5U#ws
http://www.youtube.com/watch?v=aaB8ca5GJ-Y#ws
http://www.youtube.com/watch?v=mRY-E8eBkXE#ws
http://www.youtube.com/watch?v=dXHRcDM6Tv8#ws