John Hopewell Chief International CorrespondentIan de la Rosa, a co-writer on HBO Max hit “Veneno,” has boarded “Las Líneas Discontinuas,” the second feature of Spain’s Anxos Fazáns (“A Estación Violenta”) and one of the first titles at Sétima, the Galicia production house she has set up with producer Silvia Fuentes.De la Rosa, director of “Victor xx,” an ESCAC graduation short director that won third prize at Cannes’ 2015 Cinéfondation competition, is currently co-writing “Las Líneas