War film is a film genre concerned with warfare, typically about naval, air, or land battles, with combat scenes central to the drama.
 It has been strongly associated with the 20th century.
 The fateful nature of battle scenes means that war films often end with them.
 Themes explored include combat, survival and escape, sacrifice, the futility and inhumanity of battle, the effects of war on society, and the moral and human issues raised by war.
 War films are often categorized by their milieu, such as the Korean War; the most popular subject is the Second World War.
 The stories told may be fiction, historical drama, or biographical.
 Critics have noted similarities between the Western and the war film.
Economics film is a film genre concerned with economics, typically about business, investing, and finance.
 The genre often deals with issues concerned with economics, typically about business, investing, and money.
 Economic films often touch upon themes that occur in the everyday world of business or in the economy in a general sense.
 Economics films have often been utilized to focus on economic, financial, political, social and philosophical issues.
Cool Hand Luke is a 1967 American prison drama film directed by Stuart Rosenberg, starring Paul Newman and featuring George Kennedy in an Oscar-winning performance.
 Newman stars in the title role as Luke, a prisoner in a Florida prison camp who refuses to submit to the system.
P.O.W. was a television series consisting of 6 episodes, broadcast on ITV in 2003.
 The series starred James D'Arcy and Joe Absolom.
 The drama series is based on true stories , set in Germany in the year 1940 and follows the character of Jim Caddon as he is captured after his plane crashes during a bombing raid over Normandy.
 In contrast to previous entries in the World War Two prison escape genre such as "The Colditz Story", it concentrated on escape attempts by other ranks rather than officers .
 The series was filmed in Lithuania and first broadcast on television on 10 October 2003.
 A second series has not been commissioned, though ITV followed it with several other World War Two dramas including "Colditz" and "Island at War".
 The title "P.O.W." stands for "prisoner of war".
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 of the Spider Woman" to actioners like "Lock Up" and "Undisputed", and even comedies satirizing the genre like "Stir Crazy", "Life", and "Let's Go To Prison".
Brubaker is a 1980 American prison drama film directed by Stuart Rosenberg.
 It stars Robert Redford as newly arrived prison warden Henry Brubaker, who attempts to clean up a corrupt and violent penal system.
 The screenplay by W.D. Richter is a fictionalized version of the 1969 book, "Accomplices to the Crime: The Arkansas Prison Scandal" by Tom Murton and Joe Hyams, detailing Murton's uncovering of the 1967 prison scandal.
Felon is a 2008 American prison film written and directed by Ric Roman Waugh.
 The film stars Stephen Dorff, Val Kilmer and Harold Perrineau.
 The film tells the story of the family man who ends up in state prison after he kills an intruder.
 The story is based on events that took place in the 1990s at the notorious California State Prison, Corcoran.
 The film was released in the United States on July 18, 2008.
Escape from Alcatraz is a 1979 American prison thriller film directed by Don Siegel.
 It is an adaptation of the 1963 non-fiction book of the same name by J. Campbell Bruce and dramatizes the 1962 prisoner escape from the maximum security prison on Alcatraz Island.
 The film stars Clint Eastwood, Jack Thibeau and Fred Ward as prisoners Frank Morris, Clarence Anglin and John Anglin.
 Allen West was played by Larry Hankin; his character's name was changed to Charley Butts.
 Patrick McGoohan portrays the suspicious, vindictive warden and Danny Glover appears in his film debut.
 "Escape from Alcatraz" marks the fifth and final collaboration between Siegel and Eastwood, following "Coogan's Bluff" (1968), "Two Mules for Sister Sara" (1970), "The Beguiled" (1971) and "Dirty Harry" (1971).
A prison gang is an inmate organization that operates within a prison system, that has a corporate entity, exists into perpetuity, and whose membership is restrictive, mutually exclusive, and often requires a lifetime commitment.
 In ""The Social Order of the Underworld: How Prison Gangs Govern the American Penal System,”" the author David Skarbek argues the emergence of prison gangs are due to the dramatic increase in the prison population and inmate's demand for safety.
 Skarbek observes that in a small, homogeneous environment, people can use social norms to interrupt what behavior is acceptable, but a large, heterogeneous setting undermines social norms and acceptable behavior is more difficult to determine.
 Prison gangs are geographically and racially divided, and about 70% of prison gang members are in California and Texas.
 Skarbek suggests prison gangs function similar to a community responsibility system.
 Interactions between strangers are facilitated because you do not have to know an individual's reputation, only a gangs reputation.
 Some prison gangs are transplanted from the street.
 In some circumstances, prison gangs "outgrow" the internal world of life inside the penitentiary, and go on to engage in criminal activities on the outside.
 Gang umbrella organizations like the Folk Nation and People Nation have originated in prisons.
Lock Up is a 1989 American prison drama film directed by John Flynn.
 Sylvester Stallone, Donald Sutherland, Tom Sizemore, and John Amos star.
 It was released in the United States on August 4, 1989.

Question: 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 actioners like which 1989 American prison drama film, directed by John Flynn?
Answer: Lock Up