Prison film permitted (or forced) to engage in boxing matches or martial arts bouts, replete with high-stakes wagering on the outcomes. These elements may be meshed together, where for example a prisoner forced to fight uses the occasion to plan an escape. Prison films set during war have become a popular subgenre known as prisoner of war film. Prison film A prison film is a film genre concerned with prison life and often prison escape. These films range from acclaimed dramas examining the nature of prisons, such as "Cool Hand Luke", "Midnight Express", "Brubaker", "Escape from Alcatraz", "The Shawshank Redemption", and "Kiss
Ducking (slang) the 2015 film, "Heartlock". Ducking (slang) "Ducking" is a prison slang term for a technique through which prisoners modify the behavior of correctional officers and other prison staff members using manipulation and coercion. The prison slang term for a prison staff member that has been manipulated is a "duck". Ducking occurs when a prisoner becomes friendly with a prison staff member and then persuades the employee to break prison rules and laws. The prisoner then provokes the staff member (or members) into breaking an increasing number of prison guidelines until the staff member can be effectively blackmailed by the prisoner.