Question: Which 2016 British documentary film featured a story about the two people who had established Shin Film and made many films through the 1960s?

Context articles: 100 Years Later
Abduction of Shin Sang-ok and Choi Eun-hee
One More Time with Feeling
Tae Hyun-sil
Notes on Blindness
The Contract (2015 film)
The Lovers and the Despot
McLibel (film)
Waterwalker
Brexit: The Movie

100 Years Later is a 2016 British documentary film directed, written, and produced by John Lubbock.
 The film follows the work of historian Ara Sarafian, executive director of the Gomidas Institute in London, in his efforts to create dialogue in Turkey among Armenians, Kurds, and Turks on the occasion of the 100th anniversary of the Armenian Genocide on 24 April 2015.
 The film includes appearances by Selahattin Demirtaş and İsmail Beşikçi.
The abduction of Shin Sang-ok and Choi Eun-hee was an abduction which occurred in North Korea between 1978 and 1986.
 Shin Sang-ok was a famous South Korean film director married to actress Choi Eun-hee.
 Together, they established Shin Film and made many films through the 1960s which garnered recognition for South Korea at various film festivals.
 In 1978 Choi was abducted and taken to North Korea to meet North Korea's soon-to-be dictator Kim Jong-il.
 Six months later, Shin was abducted.
One More Time with Feeling is a 2016 British documentary film directed by Andrew Dominik.
 It documents the recording of Nick Cave and the Bad Seeds' sixteenth studio album, "Skeleton Tree", in the aftermath of the death of Nick Cave's 15-year-old son Arthur.
Tae Hyun-sil (born November 11, 1941) is a South Korean actress.
 Tae was born in Songjin, North Hamgyong province, Korea in 1941.
 While studying Film at Dongguk University, she was selected as a TV actress in a public recruit held by KBS.
 While preparing to star for a drama series, Tae was offered to be an exclusive actress of Shin Film established by Shin Sang-ok.
 Tae's debut film is "Beautiful Shroud" directed by Lee Hyeong-pyo in 1962.
 With the film, she won New Actress from the 1963 Buil Awards.
 Since her debut as an actress, Tae has starred in about 300 films.
 250 films were shot during 7 years, and were mostly roles in depicting a cheerful university student or cute daughter characters.
 Tae married businessman Kim Cheol-hwan in 1968.
Notes on Blindness is a 2016 British documentary film directed by Peter Middleton and James Spinney.
 The film profiles writer and theologian John M. Hull, who became totally blind after decades of steadily deteriorating vision.
 To help him make sense of the upheaval in his life, Hull began documenting his experiences on audio cassette and wrote his autobiography "Touching the Rock: An Experience of Blindness" in 1990.
The Contract (previously known as "Squat" is a 2016 British crime thriller feature film directed by Nic Auerbach.
 The Contract is a nascent love story of two people from polar opposite worlds, thrown together by circumstance.
 The film stars Robert Fucilla, Sarah Armstrong, Danny Webb, Patrick Ryecart, Antonio Aakeel, and Jack Brady.
 The Film was released on DVD and online January 18, 2016.
The Lovers and the Despot is a 2016 British documentary film written and directed by Robert Cannan and Ross Adam, about the 1978 abduction of South Korean actor Choi Eun-hee, and film director Shin Sang-ok, by Kim Jong-il of North Korea.
 It was pitched at Sheffield Doc/Fest's 2014 MeetMarket.
McLibel (also known as McLibel: Two People Who Wouldn't Say Sorry) is a British documentary film directed by Franny Armstrong and Ken Loach for Spanner Films about the McLibel case.
 The film was first completed in 1997 as a 52-minute television version after the conclusion of the original McLibel trial.
 It was then extended with new footage to 85-minute feature length in 2005, after the McLibel defendants took their case to the European Court of Human Rights.
Waterwalker is a 1984 documentary film by Bill Mason, a Canadian outdoorsman, painter, canoeist and environmentalist, who made many films on the art of canoeing and on the appreciation of nature.
 Released theatrically in Canada in 1984, it was nominated for a Genie Award for "Best Documentary Feature."
Brexit: The Movie is a crowdfunded 2016 British documentary film written and directed by Martin Durkin, advocating for the withdrawal of the United Kingdom from the European Union, commonly called "Brexit" (a portmanteau of "British" and "exit").