Feature debut of French director Julius Berg after directing several French TV series, including La forêt (2017) and Osmosis (2019).
In February 2021, co-writer/director Julius Berg recorded a full-length audio commentary for the Rogue Commentary podcast.
For no reason at all, at 1 hr and 10 mins, the aspect ratio shrinks to square box ratio. And then at 1 hr 26 mins, it turns back to a widescreen ratio. Quite irritating and unnecessary.
Mary's cell phone is a Nokia 3110 with the iconic Nokia Tune, also known as an excerpt of Francicso Tárrega's Gran Vals.