With Kon-Tiki helmers Joachim Rønning and Espen Sandberg once again taking to the high seas for Disney's Pirates of the Caribbean 5, Legendary's supernatural thriller Spectral is left without a captain of the ship.  The studio has turned to commercials helmer and up-and-coming feature director Nic Mathieu to take the post.  The picture is described as a "supernatural Black Hawk Down" but further plot details are being kept under wraps.  We previously reported it as being a darker version of Ghostbusters with a more serious tone, featuring a contemporary, militaristic approach to fighting supernatural creatures; when evil ghosts take over Manhattan, a special ops group is brought in to take them down. As Variety confirms, Mathieu is also attached to direct Story of Your Life and Warner Bros.' Robotech adaptation.