While quite a lot about this excellent 1987 film is entirely untrue, that doesn't make it any less entertaining. It features excellent performances from Kevin Costner as Elliott Ness, Robert DeNiro as Al Capone, and Sean Connery (who won a Best Supporting Actor for his performance) as the fictional Irish Chicago cop, Malone. The film is chock full of the very best of Brian De Palma's directorial indulgences, including extended shots executed without cutting away, and dramatic slow-motion sequences like the iconic train station shootout. It also didn't hurt that the script was written by David Mamet, fresh off his Pulitzer Prize win for Glengarry Glen Ross.