It worked for me and I'm non-UK. As for the video: Even among those "You can do anything, if you believe in yourself"-people there are retards as well :)
Motivational video

That is funny but so pathetic as to make it less funny than otherwise. I knew that "I didn't believe in myself enough" was coming. Pitiful. I wonder what his wife would think.

My question is; was the guy actually trying to be serious? EVERYONE knows you can't break a piece of plywood that way, especially with your head. What was the guy thinking? I guarantee you can break a 1x4 that way, but not 1/2" plywood (aren't you gonna' ask me how I know?)?

I think it is safe to see he had little understanding of the structural performance of plywood. A more open question is how knowledgeable the person taking the video was.
I felt that the main message was that positive thinking and confidence are not enough. Things like the laws of physics are quite important as well.
This is the funniest video I have watched for a long time. Stick with it, it gets better and better.
(there may be a short ad at the start to ignore)
http://video.uk.msn.com/watch/video/motivational-board-break-gone-wrong/1j4m7t46u
As this is on MSN UK, please do tell me if it is accessible to non-UK people. I am not sure if it is or isn't.