BUENOS AIRESAttached to direct Working Title’s India-set “Six Suspects,” Pablo Trapero (“Carancho,” “White Elephant”), one of Latin America’s most successful young directors, is prepping a second crime movie. As yet untitled, the ’80s-set thriller turns on the celebrated real-life case of Argentina’s Clan Puccio, a well-off, upper middle-class Buenos Aires family that kidnapped and killed the children of associates. Trapero is developing the characters. He may bring on a co-screenwriter to complete the screenplay. The Puccio project is set up at Trapero’s Matanza Cine. It is in initial negotiations to structure Argentine and international co-production financing on the film, Trapero said Thursday. “It’s a strong story, reflecting extreme times, the end of Argentina’s dictatorship, the Falklands War.” He added: “The upper middle-classes are often idealized. They’re involved in (the ruling classes’) decision-making. This is a behind-the-scenes portrait.” Shoot dates for the Puccio Clan pic will depend on when Trapero goes into production on “Six Suspects.” From 1999′s “Crane World,” Trapero has been regarded as one of the driving forces behind the New Argentine Cinema. But his cinema is opening up. The two films catch Trapero on a roll after this year’s “White Elephant,” which grossed $4.2 million for Disney in Argentina and $1.3 million in Spain, placing Trapero in the select club of Latin American filmmakers whose movies can open in foreign territories to seven-figure takes. The Puccio Clan pic will be Trapero’s first period pic. “Six Suspects” is his English-language debut. Tags like “New Argentine Cinema” can be useful, Trapero conceded. “But things are very different from 15 years ago. Problems, anguish and desires over the Western world are very similar. I like being an Argentine director, but I also like a kind of cinema that isn’t defined by geographic or political frontiers, but by how it relates to people who see it,” he concluded.