Setting out to tell the story of Sarajevo's four-year siege in the 1990s, Nenad Sicin-Sain thought he was documenting Europe's last big war - only for Russia to invade Ukraine during filming, heightening the emotions of an already fraught project.
"Kiss the Future", which premiered at the Berlin Film Festival on Sunday, tells the story of the Bosnian capital's encirclement through the eyes of the artists and musicians who kept performing throughout, striking up an unlikely bond with Irish rock band U2.
