The easiest knock against The Drop is that it operates in an overexposed milieu: current urban American crime. It’s hard to pump something new into this world, but the film succeeds because of its rich attention to detail and a Dennis Lehane script with a surplus of tasty dialogue. Lehane, the author of Mystic River and Gone Baby Gone, adapted the screenplay from his short story “Animal Welfare.” Two initially unrelated incidents make the plot go: the rescue of a wounded dog and the closing-time robbery of a Brooklyn tavern called Cousin Marv’s. The bar’s mild-mannered, mind-my-own-business bartender, Bob Saginowsi (Tom Hardy, late of Locke), is walking home one night when he hears the pathetic mewling of an abandoned pit bull. The abused dog is on the property of Nadia (Noomi Rapace), and these two strangers strike up a friendship around the dog; it is just possible they might be interested in each other. The robbery, meanwhile, puts hapless Cousin Marv (James Gandolfini) in a tight spot; he’s already lost ownership of the bar to Chechen gangsters, who would really like their stolen money back. They play rough.