DARKEST HOUR Trailer Debut Experience the first DARKEST HOUR trailer! The film, directed by Joe Wright (Pan, Anna Karenina), stars Gary Oldman, Lily James, Ben Mendelsohn, Kristin Scott Thomas, and Stephen Dillan. DARKEST HOUR will be released in theaters on November 22. Within days of becoming Prime Minister of Great Britain, Winston Churchill (Gary Oldman) must face one of his most turbulent and defining trials: exploring a negotiated peace treaty with Nazi Germany, or standing firm to fight for the ideals, liberty and freedom of a nation. As the unstoppable Nazi forces roll across Western Europe and the threat of invasion is imminent, and with an unprepared public, a skeptical King, and his own party plotting against him, Churchill must withstand his darkest hour, rally a nation, and attempt to change the course of world history.