Writing Michael Grais Other Credits Poltergeist Original Film Writer 2015 Behind the Wall Producer 2008 Who Killed Atlanta's Children? Executive Producer 2000 Cool World Screenplay 1992 Sleepwalkers Producer 1992 Marked for Death Screenplay 1990 Great Balls of Fire! Executive Producer 1989 Poltergeist II: The Other Side Screenplay 1986 Poltergeist Screenplay 1982 Death Hunt Screenplay 1981 Agent-readable