Based on the torture and imprisonment without trial of a Mauritanian suspected of being involved in the organisation of the 9/11 atrocity, this is tough movie to watch, The mental and physical cruelty he endured is a matter of record but the unravelling of the carefully concealed horror of Guantanamo is painstakingly reconstructed, so painstakingly as to be dogged rather than exciting. The movie’s strength is its honesty but honesty for 2 hours can be a little dull. But everyone should see the movie as it’s a chronicle of great wickedness.