Detention
Date:
January 12, 2023
Detention
Detention
by Guillaume Massart
TS Productions, Triptyque Films | France
Documentary | 2nd feature
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Logline
Prison guards in training are learning the rules of detention.
Synopsis
At France’s prison officer academy, a group of recruits learn to manage violence, enforce discipline, and absorb the logic of detention.
Step by step, their bodies, language, and beliefs adjust to the institution’s codes.
Then comes the fieldwork — and the shock of reality.
After In the Open, Guillaume Massart gets to the heart of the prison system and brings out the society that builds it.
Director’s Profile
Born in 1983 in the French Ardennes, Guillaume Massart works variously as a director, producer, and editor, creating author-driven documentary films.
In 2010, he co-founded the production company Triptyque Films.
He directed eleven short films and his first feature, IN THE OPEN, was released in French cinemas in 2019.
He is currently finishing his second feature-length documentary, DETENTION, co-produced by Triptyque Films and TS Productions and slated for release in 2026.
Company Profile
In 2002, Céline Loiseau joined TS Productions, a production company created by Miléna Poylo and Gilles Sacuto. Ever since, she produced about 40 documentaries, including Home Sweet Home, by Nadine Naous, Grand Hotel Ballet by Jacques Deschamps, or Ash and Ember, directed by Manon Ott. She also produced On the Adamant, directed by Nicolas Philibert, Golden Bear winner of the 2023 Berlinale. In 2024, Château Rouge by Hélène Milano was selected for ACID Cannes, and Green Line by Sylvie Ballyot won the Mubi First Film Award at the Locarno Film Festival. My Armenian Phantoms, directed by Tamara Stepanyan was part of the Berlinale Forum in 2025 and represents Armenia for the Oscars. She is a member of the Eurodoc network, gives classes at INASup.