Flock of migrating bricks

Bricks fans can currently be royally entertained by an advert for the National Lottery. It shows a flock of bricks flying over hill and dale, through snow and town, to find a sunny plot to build on. Very amusing indeed for those of a brick persuasion. Not quite worked out the significance of it all yet though (apparently it's something to do with getting people to think about the possibilities of winning), but there's a press release about the advert here (pdf format). As for me, I'm wondering if my chances of getting a lottery grant have gone up, what with the National Lottery now setting such great store by bricks :-)