The Mauritanian directed by Kevin Macdonald and featuring an all-star cast that includes Jodie Foster, Tahar Rahim, Zachary Levi, Saamer Usmani, Shailene Woodley and Benedict Cumberbatch is based on the disturbing memoir of Mohamedou Ould Slahi, Guantanamo Diary, documenting his detainment at Guantanamo Bay without charge for over 15 years. The film tells the story of Slahi’s imprisonment and torture at the behest of the United States government and his long struggle for freedom.