Hehe yeh the Barclays one is good, love the song from it as well. But apart from the actual bit in the advert where he "contactlessly" swipes his card through the Veg store, there isn't much to do with it - although I suppose it could be promoting fun and freedom and that kind of stuff? Adverts don't really need to be about the product or content they are promoting normally anyway, it just needs to be something that catches your eye and gets you talking about it afterwards - which is why both the Barclays advert, and the Cadburys one, are successfull because we are talking about them right here! Now I won't necessarily go out and buy a Cadburys bar because of the advert, and I've got no desire to get a contact-less credit card from Barclays or whatever it is lol, but the more it gets passed on that its been seen, somewhere along the line someone will go out and buy that chocolate, or apply for the card!
And yeh, the Cadburys advert is un-nervingly freaky. Can't work out whether its all real and its just speeded up footage, or if some of it is computer-generated layered over the top, or what! It's just werid! BUT it's doing its job, getting it into your head! Advertising is annoying like that!