Lise Pedersen Opening CPH:DOX’s popular “Film:makers in Dialogue” industry section on Monday, the directors of “Balomania” and “KIX,” running in the main Dox and Next:Wave segments respectively, met to discuss the challenges and ethics involved in following protagonists on the margins of society over many years, and the impact they hope to generate. Shot over more than a decade, “Balomania” by Sissel Morell Dargis is the fascinating and wild story of secret gangs from Brazil’s favelas who make and chase gigantic hot air balloons.