How to Barrel roll video

A friend asked me to make a how-to video on doing a barrel roll with a helicopter. Not a difficult move and quite fun to do.

I see the image of somebody 'flying' a flight sim - and an ad for their web pages.
 

"Not a difficult move and quite fun to do" 
Hmmm. A long as you are talking model helicopters with power to weight and structural strength to match.
I have yet to see a full size helicopter do low level tic tocs!