[2] Filmed at the Centre hospitalier Le Vinatier in Bron near to Lyon, the title derives from a French law that states that patients who are involuntarily committed to a psychiatric institution must have their case reviewed by a judge within 12 days of their committal.

[3] 12 Days received a 95% score on Rotten Tomatoes, based on 23 reviews.

[4] In The Guardian, Wendy Ide wrote "The extraordinary level of access and intimacy begs the question, if someone is not deemed fit to leave a psychiatric ward, can they really agree to participation in a documentary?

[…] However empathetic the approach and honourable the intent, questions of consent and the spectre of exploitation lurk at the edge of the frame.

Moral questions notwithstanding, this is a remarkable piece of work," and gave it four stars out of five.