Based on the biography My Heart Is My Own: The Life of Mary Queen of Scots, the film stars Saoirse Ronan as Mary, Margot Robbie as Queen Elizabeth I, Jack Lowden, David Tennant, Taylor Swift’s boyfriend Joe Alwyn, and Guy Pearce.
The film is scheduled to be released in the United States on 7 December 2018, and in the United Kingdom on 18 January 2019.