Hester Street (movie, 1975)

Steven Keats plays a Russian emigre who prides himself on the way he's molded himself into a real Yankee in the USA, though the world he lives in, New York's Lower East Side in the late 19th century, is almost exclusively populated by other Jewish immigrants. When his wife (Carol Kane) finally arrives in the New World, however, she has a lot of assimilating to do. This causes the tension which drives the movie along, though it maintains a fairly light atmosphere most of the time.