A film based on the book Eleven Days In Hell: The 1974 Carrasco Prison Siege at Huntsville, Texas, by William T. Harper is in the works.

T indie thriller, Eleven Days, will star Diego Luna and Taylor Kitsch.

The film is set in the sweltering heat of a Texas summer in 1974, where ruthless prisoner Federico Carrasco (Luna) plays a deadly game against Jim Estelle (Kitsch), head of the Texas Department of Corrections, after taking over Huntsville Penitentiary and holding dozens hostage when his pre-planned escape goes awry. Lines between captor and captive, justice and survival, begin to blur as the siege spirals for eleven endless, terrifying days. 

Peter Landesman (Concussion) directs from a script by Kevin Sheridan with revisions by Landesman.

Deadline first reported on the cast of Eleven Days.