The Ruins (2008)

Synopsis
Based on the novel by A Simple Plan author Scott Smith, director Carter B. Smith's Yucatan-set thriller follows four American tourists as they unwisely venture off the beaten path while vacationing in Cancun. When a friendly German tourist implores the Americans to help search the jungle for his missing brother, the group becomes hopelessly trapped in a nightmare scenario that seems too strange to be true. Jonathan Tucker, Laura Ramsey, Jena Malone, and Shawn Ashmore star. ~ Jason Buchanan, All Movie Guide