No here's an observation:
I was watching Poltergeist last night and spotted this:
When the Parapsychologists arrive at the Freeling house, they are questioning Steve about his family. He tells them that his wife Diane is 32, and their eldest daughter, Dana is 16. Well this means the Diane was only 16 when she gave birth to Dana! Boy she must have been a bit of a bag in school!
Hope you aren't reading this Jobeth!