This might have already been spotted but if not :-
Remember when we had the 2009 London meeting :
http://c5alive.co.uk/forum/index.php?topic=311.45
And we met up with a film crew for a video they were making ?
I have just found it on youtube
http://www.youtube.com/watch?v=ub7FH0c2vO4
Heres the video I made of the day
http://www.youtube.com/watch?v=eal0TglwmRU