EXCLUSIVE: Joey King and The Affair‘s Julia Goldani-Telles have been tapped to co-star the Sylvain White-directed horror thriller Slender Man, along with Captain Fantastic actress Annalise Basso, Jaz Sinclair (When The Bough Breaks) Talitha Bateman (upcoming Annabelle: Creation) and Alex Fitzalan. Screen Gems will distribute the film May 18, 2018, and co-producing with Mythology Entertainment, Madhouse Entertainment and It Is No Dream Entertainment. Written by David Birke…