Exclusive Episode #083: Artist Paul McCarthy describes the improvisational process and performances behind the video work "Piccadilly Circus" (2003). Filmed at an unoccupied London bank before being renovated by Hauser & Wirth gallery in 2002, and shot several months before the start of the Iraq War, the work features costumed players in the roles of President George W. Bush, Osama Bin Laden, and the Queen Mum (in three versions).