"Dune" (1984, David Lynch) and the 2000 "Dune" miniseries, based on Frank Herbert´s bestselling science fiction novel "Dune", show a world where a corporeal shield (a force-field projector) makes laser and projectile weapons useless. Because of that, wars and duels are settled by knife-fighting, which is altered by the presence of the shield: a fast-moving knife bounces off the shield; a slow-moving knife can penetrate the shield to reach a vital organ. The climactic duel, between Paul Muad´dib and Feyd-Rautha, used only knives (no shields) and martial-arts abilities.