This seems to be causing something of a stir, although for the life of me I can't really see why...
It seems that the new TV advert for the Panasonic G2 (which involves people running and jumping about and taking photos of themselves in unusual positions) was filmed using some Canon EOS 5D MkII cameras and a load of L series glass.
Regardless of that, I find it quite an engaging advert and the
behind the scenes footage is worth a watch regardless.