Brian De Palma's The Untouchables is a must-see masterpiece: set to a classic Ennio Morricone score, this is the glorious and fierce depiction of the larger than life mob warlord who ruled Prohibition-era Chicago - and the law enforcer who vowed to bring him down. 

This classic confrontation between good and evil stars Kevin Costner as federal agent Eliot Ness, Robert De Niro as gangland kingpin Al Capone and Sean Connery winning an Oscar as Malone, the cop who teaches Ness how to beat the mob: shoot fast and shoot first.