Slender Man is an upcoming 2018 horror film being developed by Screen Gems, a subsidiary of Sony Pictures, and Eric 'Victor Surge' Knudsen.
In May 2016, Mythology Entertainment, Madhouse Entertainment, and No Dream Entertainment acquired the media rights to Slender Man. It was later sold to Screen Gems, a subsidiary of Sony Pictures. In late 2016, it was announced that David Birke would be making the script for the movie. On January 4th, 2017, it was announced by Deadline Hollywood that Sylvain White would be directing the film. Additionally, Deadline stated that filming was set to begin by spring 2017. The film is scheduled to be released in May 2018
On May 23rd, 2017, the film's main cast and release date was revealed. 
On May 29th, 2017, it was revealed by The Boston Globe that the film will be shooting in Boston, Massachusetts. It was also revealed that shooting will run from June 19 to July 28. 
Slender Man - The faceless main antagonist of the film.
Mr. Jensen - An alcoholic, emotionally defeated father; played by Kevin Chapman. 
Hallie - The first victim of Slender Man, played by Julia Goldani Telles 
Chloe - Role TBA; played by Jaz Sinclair. 
Tom - Role TBA; played by Alex Fitzalan 
Slender Man revolves around a tall, thin horrifying figure with unnaturally long arms and a featureless face, who is reputed to be responsible for the haunting and disappearance of countless children and teens.