Long ago, in the American popular imagination, Boston was the home of the bean and the cod, a genteel stomping ground of Brahmins and bluestockings and Ivy League nitwits. Nowadays, perhaps owing to tax incentives that encourage local film production, it has become a paradise for dialect coaches and a cinematic stronghold of the kind of white, ethnic, blue-collar tribalism that used to flourish in movies about places like Philadelphia, Chicago and, of course, New York.
