Throughout the film, freeze frames of the original Blair Witch footage can be seen on screen for a single frame, usually when a camera is turned on or off, including, but not limited to an image of a hanging stick figurine, and the image of Michael standing in a corner.
In order to make this sequel as surprising as possible, filming was done in complete secrecy in Vancouver, as opposed to Patapsco State Park where the original was shot. The film was originally promoted under the faux-title "The Woods". The first trailer was then shown at the 2016 San Diego Comic Con, revealing it as the third "Blair Witch" film, a mere two months prior to the premiere.
In preparation of another Blair Witch movie, Burkittsville officials took down most of the "Welcome to Burkittsville" signs, after many were stolen following the release of the first and second movies.
Director Adam Wingard used air horns in order to get the right jump-scare out of his actors.
Director Adam Wingard stated that, while the first film is about being lost in the woods, this film is about being chased.