This is a really witty, cool concept for a video. Unable to afford a proper video production The Get Out Clause an unsigned band from Manchester UK. made a music video entirely using publicly available feeds from CCTV in London.
Apparently citizens are allowed to request any footage in which they appeared within the last 30 days. The Get Out Clause used this aspect of the law to their advantage, getting the city to film its music video for free !
Source
