Diggers (2006)
Diggers is a coming-of-age film directed by Katherine Dieckmann. It portrays four working-class friends who grow up in The Hamptons, on the South Shore of Long Island, New York, as clam diggers in 1976. Their fathers were clam diggers as well as their grandfathers before them. They must cope with and learn to face the changing times in both their personal lives and their neighborhood.
More at Wikipedia.