Entity, The (1981)

The movie “The Entity” is supposedly based on a true story. Does anybody know how true the story is? Were there actually scientists who observed and documented the occurences and disturbences?

Chris

Here are a few links that might be useful:
http://the-entity.wikiverse.org/
http://thesupernaturalworld.co.uk/forum/lofiversion/index.php/t103.html
http://www.marciajedd.com/ghosts.htm
http://pub157.ezboard.com/fleftfieldpsifrm17.showMessage?topicID=5.topic

I make no guarantees as to the quality or accuracy of any of these sites.