John Hopewell Chief International Correspondent CANNES — Belinda, one of Mexico’s biggest popstars and a star of Netflix hit “Welcome to Eden,” is attached to headline “The Red Diamond,” the latest project from Erik Barmack’s L.A. and Mexico City-based Wild Sheep Content. One of the fastest-growing of production companies in international markets, Wild Sheep has a production alliance with The Mediapro Studio. “The Red Diamond” is also set up at Mexico City’s Wild Sheep Content Latin America, headed by producer Jimena Rodríguez who produced “3 Idiots,” the second highest-grossing Mexican movie of 2017. Rodríguez was instrumental in helping bringing Belinda to the project.