(Washington D.C., USA) Director Jan Svatos was accepted to make a research for our documentary the Ark of Lights and Shadows in the Library of Congress. While searching for vergotten rough archive footage from Martin Johnson, Jan was allowed to enter even for public inaccessible parts of the library. One of it was the audiovisual center located outside of Washington D.C. in Culpeper where are safely stored unique higly flammable nitrate reels. Next to Martin Johnsons reels are secured here even original reels of tresures of the world cinematoghraphy as Casablanca or The Godfather and many other. The whole research lasted one week – nearly 45 hours.