Mark Kermode delivers a happy ending to a tiny cinema by giving their last opening a red carpet world premiere. New Orleans brass ten piece Hot 8 do the busking challenge. Andrew Graham-Dixon learns more about the late Marcel Duchamp, Godfather of conceptual art. Brighton rockers British Sea Power perform a secret gig on Canvey Island. Architecture critic Tom Dyckhoff visits Liverpool, European Capital of Culture 2008. With music from the Eels