"Between 2002 and 2007 Belgian photographer Jean-Paul Deridder, who was born in Brussels in 1963, visited movie theaters in Germany and Belgium with a large-format camera. "Everybody should be aware that this will no longer exist in twenty year's time, as films will by then be played from a hard disk," prophesies film projectionist Marc Knoll of the Odeon in Cologne. "The multiplexes are depart…