Here’s the latest trailer for HBO’s new period drama Boardwalk Empire, which will air before Sunday’s season premiere of True Blood. Executive producer Martin Scorsese directed the pilot, and the show has the look and the feel of a classic gangster movie like The Godfather, Once Upon a Time In America, The Untouchables, and Scorese’s own Goodfellas. Written by The Sopranos scribe Terence Winter, Boardwalk Empire premieres in September. Also among the trailers before True Blood tonight – a preview of new drama Game of Thrones.