Question: Which US documentary was made first: Scared Straight! or Soldier Girls?

Context articles: Scared Straight (disambiguation)
Soldier Girls
Scott Radinsky
Marianne (1929 silent film)
Nardcore
Double Negative (band)
Admir Čavalić
Peter Richardson (filmmaker)
Front Lines (novel)
Scared Straight!

Scared Straight!
 is a 1978 documentary film and a type of juvenile rehabilitation program named for it.
Soldier Girls is a 1981 documentary film by Nick Broomfield and Joan Churchill about several women training in the US army.
Scott David Radinsky (born March 3, 1968) is a left-handed former relief pitcher in Major League Baseball, who had an 11-year career from 1990 –1993 and 1995 –2001 .
 Radinsky is also the lead singer of the punk rock band Pulley, former lead singer of the bands Scared Straight and Ten Foot Pole and co-owner of the skate park which houses the Skateboarding Hall of Fame.
Marianne is a 1929 pre-Code romantic drama about a French farm girl who, despite already having a French fiancé, falls in love with an American soldier during World War I.
 It was made first as a silent film, then as a musical with a different cast, though Marion Davies starred in both versions.
Nardcore is a hardcore punk movement that began in Southern California during the early 1980s, originating in Silver Strand Beach and Port Hueneme.
 Early bands of the nardcore scene include Agression, Dr. Know, False Confession, Ill Repute, Habeas Corpus, RKL and Scared Straight.
 The first venues to regularly host punk shows in the Oxnard area were Casa Tropical (a Quonset hut at the Oxnard Airport), Town and Country (Port Hueneme), Skate Palace (Port Hueneme), and Casa de la Raza (Santa Barbara).
Double Negative was a rock band from South Dublin, Ireland.
 The three band members had been childhood friends and attended CBC Monkstown in the South of Dublin.
 They were all inspired by the music of classic rock legends such as Jimi Hendrix, the Beatles and Guns n' Roses.
 The inspiration for coming together was to become popular with the ladies but instead they found their friendship was the only positive result.
 In 2007, they performed their original songs to a familiar crowd in the Voodoo Lounge, Dublin 1 to great reviews.
 Double Negative came to an end in 2008 when they all gave up and decided to go their separate ways.
 Mark Connolly became a secondary school teacher; Cillian Daly moved to London and is recently engaged.
 Ian Woods recently became a Doctor after successfully completing his PhD in biomedical engineering in UCD, much to the relief of his mother.
 Guitarist Scott Williams (aka: Epic Warfare) previously played in American Lore (with Mike Dean from Corrosion of Conformity), Fight 4 Life, Second Coming, Days Of..., Dixie Automotive, Garbageman, Daddy and Volcanoes (band).
 Original drummer Brian Walsby had been in California's Scared Straight, Willard, Shiny Beast and Patty Duke Syndrome (with Ryan Adams), as well as Wwax, Daddy, Siberian, Snake Nation (with Mike Dean and Woody Weatherman of C.O.C.) and even the final Polvo line-up that recorded Shapes before they disbanded.
 Original singer Kevin Collins (aka: KC) was in Subculture, Days Of and Erectus Monotone.
 Bassist Justin Gray was in Dixie Automotive, Big Dan, Willard, Garbageman, The Rails, and The Step Gods.
Admir Čavalić is the Director of Association "Multi", a non-profit organization dedicated to promoting libertarian ideals in Bosnia and Herzegovina.
 "Multi" is the first non-profit organization registered in Bosnia and Herzegovina that advocates libertarian ideas.
 Čavalić is the director of OPEN Fest, biggest libertarian festival in Europe.
 Čavalić also works at Faculty of Economics University of Tuzla, as an assistant teacher.
 Čavalić with Dženan Smajić wrote "Islam and Free Market" in 2014.
 The book, that was published in Bosnian, provides arguments for Islam's connection with the ideas of economic liberalism.
 Čavalić made first bosnian documentary about economics, titled "Economy".
Peter Richardson is an American documentary film director.
 A native of Philomath, Oregon, Richardson is a 1998 graduate of Philomath High School and attended University of Notre Dame on a scholarship.
 After graduating from Notre Dame with a Bachelor of Arts degree in Film Production & Theory, Richardson moved to Los Angeles where he worked for a short time at a publicity company before moving back to Oregon to start work on his first film.
 Richardson has directed two award-winning feature documentaries.
 His first film, "" debuted at the 2006 Sundance Film Festival.
 The film was later aired on the Sundance Channel.
 Richardson's second film, "How to Die in Oregon", premiered on January 23 at the 2011 Sundance Film Festival.
 In addition to directing the film, Richardson also acted as cinematographer, editor, and producer on "How to Die in Oregon".
 The critically acclaimed film went on to win the Grand Jury Prize in the US Documentary competition.
 The film premiered on HBO on May 26, 2011.
 Richardson was the cinematographer on Irene Taylor Brodsky's documentary short film, "Saving Pelican 895", which aired on HBO on April 20, 2011.
Front Lines is a young adult historical novel by the American writer Michael Grant, who is most famous for his dystopian young adult fictional series The Gone Series.
 It is written from the viewpoint of three girls, Rio Richlin, Frangie Marr, and Rainy Schulterman.
 The series was originally titled "Soldier Girls".
Scared Straight!
 is a 1978 documentary directed by Arnold Shapiro.
 Narrated by Peter Falk, the subject of the documentary is a group of juvenile delinquents and their three-hour session with actual convicts.
 Filmed at Rahway State Prison, a group of inmates known as the "lifers" berate, scream at, and terrify the young offenders in an attempt to "scare them straight," (hence the film's title), so that those teenagers will avoid prison life.