When Lars Edman and William Johansson Kalén were at film school together they had no idea how long it took to make a movie. “We didn’t have any idea,” laughs Kalén. “I remember watching a film that took three years to make, and I was thinking, ‘Oh, shit. Three years? That’s a hell of a long time. Couldn’t they have finished it a bit quicker?’” Now, as the duo make their IDFA debut with the world premiere of their second feature-length doc “Arica” in Frontlight, they know only too well what it’s like to be in it for the long haul. Says Kalén, “If only we’d known when we started that it would take 15 years…”