My recent greenscreen post went down well, so here's another incredible special-effects showreel, brought to my attention by @TVSatelliteWeek. This four-minute video shows you how the 1920's world of Boardwalk Empire was created, using greenscreen to extend the sets they built. A word of warning: about halfway through there's footage of a significant character who joins the show mid-season, whose CGI-assisted facial disfigurement is a key part of his character's unnerving presence. You may consider those shots a spoiler if you haven't seen all of Boardwalk Empire's first season yet. It's unfortunately the preview frame Vimeo has grabbed (see above), but there's nothing I can do about that.