Iran had its moment, Finland and Korea too. But at film festivals around the world these days, much of the talk is focused on Argentina and the emerging crop of young directors who have been winning prizes and praise from Berlin and Rotterdam to Toronto and Miami. That flowering began here in the late 1990's and is still more an art-house phenomenon than a commercial one. Its most recent product is Lucrecia Martel's "Holy Girl," which opened in New York on Friday, and hopes to build on the momentum established by Fabian Bielinsky's "Nine Queens." Larry Rohter reports in the New York Times (free subscription required to view).