groups, a form of archery known as combat archery is practiced, where several archers divided into "lights" and "heavies", namely those wearing armour or not, shoot at each other with cushion-tipped arrows from low-powered longbows, with a maximum draw-weight of . The rules of combat archery dictate that no archer may shoot at a light, however all may shoot at a heavy. Combat archery can be an interesting challenge for participants, as it involves shooting at moving targets, and can be used to re-create battles. In Australia, it is more common for 'lights' to wear enough protection that they can shoot at each other as well. It is important to note the strict separation between archery practised as a competitive sport and archery as an impalement art. For example, organising bodies for competitive archery prohibit activity that involves deliberate shooting in the general direction of a human being. The separation between the worlds of competition archery and the impalement arts is more marked than that between, for example, knife throwing as a sport and as an entertainment. While some competition knife throwers have also performed circus acts and there are official organisations that embrace both worlds, there is little or no evidence of such crossover in archery, with perhaps the sole exception of reenactment groups (e.g. Society for Creative Anachronism), where archers can both compete in a tournament (target archery) and participate in combat archery, shooting with light bows and special safety arrows at well armoured warriors (often knights). However archery involving a person in the vicinity of the target is a particularly dangerous practice and, even with very experienced performers, there have been cases of very serious injury. Another situation where archery features as an entertainment is in its portrayal in movies. Howard Hill used his extraordinary accuracy for the archery in the movie The Adventures of Robin Hood (1938) starring Errol Flynn. He used a heavy hunting bow to hit small reinforced target areas on the chests of actors in motion. Hill also performed stunts such as shooting an apple held by a volunteer and shooting a stone as it was thrown in the air. Some of his stunts can be seen in the short film Cavalcade of Archery (1946). International games which include archery Summer Olympic Games Summer Paralympic Games World Games Asian Games Commonwealth Games See also Archery at the Summer Olympics Archery at the Summer