Spooky..!Actress JoBeth Williams, who played Diane, had a supernatural encounter during the filming of the movie. JoBeth would come home everyday and the pictures on the wall of her house would be crooked. She'd put them back yet five minutes later they would be crooked again. Zelda Rubenstein (Tangina Barrens) also had an experience where a vision of her dog came in front of her eyes and said goodbye to her. Hours later, her mother called her and told Zelda that her dog had indeed died that very day.
More Behind the Scenes from Poltergeist (1982)