All incarnations of "the slim haunter" or "Slenderman" are computer generated, hand-tracked each frame using an image editor and manipulated fan-art of the "Slenderman".
There are many times that The Slim Haunter was planned to appear such as in the final scene. Cameron, the editor, decided not to add him in as he had already spent a lot of time and had lost inspiration for the project. Instead, a simple camera-glitch effect was used, to hint at his presence.
This is one of Cameron's least proud films, as him and his siblings didn't really have an adequate production budget to make it.
The film was planned and announced to be released on the 31st of October 2014. This release was delayed two months due to the time it took to digitally render "the slim haunter".
It is a Slenderman fan-film.