Boardwalk Empire - HBO does it again with a little help from Scorsese

Airing in the States at the moment. Boarwalk Empire ticks all the right boxes. Great script, set, costume and of course acting. Starring Steve Buscemi (Enoch "Nuky" Thompson) & Michael Pitt (Jimmy Darmody).
Set in Atlantic city 1920's & 30's just as the Prohibition era starts. It feels as stylized as 'Once upon a time in America' and with the acclaimed screenwriter Terence Winter (Soprano's) adapting it for the screen, you know it has substance.
A must see even if gangsters aren't your bag.