Giving viewers a chance to celebrate and have an inside look at the upcoming feature film "Downton Abbey," The film "Downton Abbey," which features the returning cast and a story highlighted by a visit from the King and Queen of England, opens in theaters September 2019. The hourlong special, to be hosted by two-time Emmy Award winner Derek Hough and filmed at the historic Highclere Castle in England, will talk to the cast about what made the series so unique and appealing to millions, as well as how the series easily segues into the feature film. In addition, celebrities will share their "Downton" obsession and talk about what made the show so addictive.—Vesterrosenmeier