Leo Barraclough International Features EditorAhead of the film’s world premiere at Locarno Film Festival, Variety has been given exclusive access to the debut trailer for “Hinterland,” the crime thriller from Austrian filmmaker Stefan Ruzowitzky, who won the Foreign Language Film Oscar with “The Counterfeiters.”The film is a center-piece of the festival with a prestigious first weekend primetime premiere on Friday, Aug. 6 in the event’s iconic open-air venue, Piazza Grande.