Ed Meza @edmezavar Buenos Aires-based FilmSharks has nabbed worldwide rights to Spanish filmmaker Chiqui Carabante’s black-comedy whodunnit “The Fortress” (“La Fortaleza”) and is debuting its trailer ahead of the Cannes Film Market. The film centers on the death of Arturo Viaplana and its aftermath as his offspring, hoping to inherit a great fortune, discover that instead of leaving them the estate, their father has devised a macabre, posthumous game in which his children must first locate his body and bury it themselves in a specified location. Working together to carry out their father’s instructions and pass a series of tests, the siblings are forced to come to terms with a deeply hidden family secret.