In the scene where David begins filming in a found footage style, actor Aaron deakins reaction in the film is his genuine reaction as he was not aware a tree trunk was going to be thrown at him in the take.
The aliens in the film were CGI but the co director Joshua Dorrington bought alien masks as a "stand in" for set.
Star Aaron deakins filmed this back to back with A24s Warfare.
Straight after the first film was completed it was shown in London where it was positively received, a sequel was planned straight after with a slightly higher budget.
The Original screenplay for the film was inspired by a film the writer watched as a child which he believed was real until his teen years.
That film was "Alien Abduction Incident in lake county"