Elsa Keslassy International Correspondent Arte has boarded “Reykjavik Fusion,” the first series produced by ACT4, an Icelandic banner launched by award-winning industry veterans, including Ólafur Darri Ólafsson (“True Detective”), Hörður Rúnarsson (“Black Sands”), Jónas Margeir Ingólfsson (“The Minister”) and Birkir Blær Ingólfsson (“Thin Ice”). The high-concept show will be distributed internationally by Wild Sheep Content, led by Erik Barmack, a former Netflix head of international.