Joey King & 'Slender Man' Cast Attend Special Screening of Their Horror Film!

Joey King has a new horror movie coming to theaters this weekend and she gathered her friends to get a sneak peek of the Slender Man scares before the film gets released!

The 19-year-old actress was joined by co-stars Annalise Basso and Julia Goldani Telles at a special screening of their movie on Wednesday (August 8) at the iPic Theater in Westwood, Calif.

The ladies were joined at the event by co-star Alex Fitzalan, along with producer Brad Fischer.

Joey has a bunch of friends at the screening, including sister Hunter King, Seth Green, Lydia Hearst, Abby Quinn, and Kevin Miles. Her future The Bayou co-star Dylan O’Brien also stepped out to show support.

Slender Man is about a group of friends in a small town in Massachusetts, who are fascinated by the internet lore of the Slender Man and attempt to prove that he doesn’t actually exist – until one of them mysteriously goes missing. The film hits theaters on August 10!

30+ pictures inside from the Slender Man screening…