Iranian film A Hero stretches its thin story to the brink

For fans of international films, Iranian filmmaker Asghar Farhadi has been a reliably good storyteller. Two of his films — 2011’s A Separation and 2016’s The Salesman — won the Oscar for Best Foreign Language Film (now named Best International Feature Film), and his other films have been well- regarded and rewarded with a slew of honors. His latest film, A Hero, is a morality tale that is as well made as his other films,…