Black X-Mas is a 2006 Christmas slasher film written and directed by Glen Morgan and starring Katie Cassidy, Michelle Trachtenberg, Mary Elizabeth Winstead, Oliver Hudson, Lacey Chabert, Kristen Cloke, Crystal Lowe and Andrea Martin. The film takes place several days before Christmas and tells the story of a group of sorority sisters who are stalked and murdered in their house during a winter storm. It is a loose remake and reimagining of the 1974 film of the same name. A co-production of Canada and the United States, the film was produced by Morgan and James Wong through their production company Hard Eight Pictures, along with 2929 Productions, Adelstein-Parouse Productions and Hoban Segal Productions. It is the second film in the Black Christmas series.

Katherine Evelyn Anita Cassidy is an American actress. Following several minor television roles, she came to attention as a scream queen after starring in the horror films When a Stranger Calls (2006), as Kelli Presley in Black Christmas (2006) and as Ruby in the third season of the horror series Supernatural (2007–2008). Following a supporting role in the action film Taken (2008), Cassidy played leading roles in the slasher series Harper's Island (2009) and the remake of the drama series Melrose Place (2009–2010). She starred as Kris Fowles in the slasher film remake A Nightmare on Elm Street (2010) and had a recurring role as Juliet Sharp during the fourth season of the teen drama Gossip Girl (2010–2012).