Writer/Director Cristian Mungiu on “Fjord” and the High Cost of Living Inside Political Echo Chambers

With a screenplay mostly in Norwegian, along with Romanian, Swedish, and English, director Cristian Mungiu’s quietly riveting family drama is a true European co-production. “We shot in Norway, edited in Romania, sound design in Finland, and mixing in Denmark,” he said of Fjord, which won the Palme d’Or in Cannes this spring. “There was always somebody speaking Norwegian in post-production. For the final mixing in Denmark, we had people speaking Norwegian, Swedish, English and Romanian,...