EXCLUSIVE : Ahead of the Cannes market next month, Warner Bros. International Television Production Sweden has appointed Greek outfit Heretic as international sales agent for Adult Supervision , the upcoming Scandi drama starring Swedish stars Gustaf Skarsgård ( Vikings ), Fares Fares ( The Nile Hilton Incident ) and Linus Wahlgren ( Crimes Of Passion ). Known locally as Arkipelag , the project marks the debut feature film written and directed by Swedish author Alex Schulman. The synopsis reads: “When three fathers chaperone their teenage daughters on a rowdy school trip to a remote island, tensions quickly escalate and their grip on the situation begins to slip. As buried memories resurface, games turn into power struggles — and power into violence. Soon no one can tell: who is in charge, and who is in danger?” Above is an image of the three protagonists in the movie.…