Guantánamo Diary is a 2015 memoir[1][2] written by Mohamedou Ould Slahi, whom the United States held, without charge, for fourteen years.

[3][4] Slahi was one of the few individuals held in Guantánamo Bay detention camp whom U.S. officials acknowledged had been tortured.

[3] Each page had to be submitted to military censors who made 2,500 redactions before releasing the manuscript to Slahi's attorneys seven years later.

[1] Editor Larry Siems edited the handwritten manuscript passed to him by Slahi's lawyers.

[11] Producers Lloyd Levin and Michael Bronner had previously collaborated on the films United 93 and Green Zone.