Cinematographer Edward Lachman was starting to think he’d never get to work with director Pablo Larraín, an old acquaintance. But more than 15 years after their first meeting, “El Conde,” a satirical horror film that rethinks former Chilean President Augusto Pinochet as a vile, bloodsucking vampire, has become that occasion. “Once Pablo wanted to go black-and-white and we’re dealing with …
