files/pictures/picture-35.jpgEthan Hawke (TRAINING DAY) has joined an untitled horror film from director Scott Derrickson (THE EXORCISM OF EMILY ROSE), writes The Hollywood Reporter
. Jason Blum (INSIDIOUS, PARANORMAL ACTIVITY) is producing with Automatik Ent.
Derrickson and C. Robert Cargill co-wrote the film, which is being kept top secret. Charles Layton is the exec producer.
Production will start on Sept. 19.