The cast and crew were swarmed by bees while filming. Some of the incident remains in the movie.
The director had "The Blair Witch Project" and Terrence Malick's "The Tree of Life" in mind while filming.
The director was inspired to start production after seeing "Willow Creek".
An in-world Tumblr blog called "AliveintheDark" is run by a character from the world of the movie.
All songs in the film are diegetic, though it is implied that the phenomena can imprint audio and images onto the footage.