Marta Balaga Cyril Aris and his frustrated protagonists in “Dancing on the Edge of a Volcano” are done mincing words. “I hope this film can be screened the way it is, although it’s not painting the brightest picture of the Lebanese political class. And if they censor it, thank you for the publicity. I will take it,” he says following its premiere at Karlovy Vary Film Festival. “In Lebanon, we have leaders who are experts in divide-and-conquer. That’s how they fire up their base and that’s what happened in the port of Beirut, too. There is this theory that everyone knew what was happening, but they were paid for their silence.”