The year was 1982, affectionately called “The Spielberg Summer” by the media (because E.T. and Poltergeist were barnstorming the box office), and MGM was facing bankruptcy. It bet the house on Poltergeist, directed by Tobe Hooper (The Texas Chainsaw Massacre) and produced by Steven Spielberg, and claimed victory as the supernatural thriller grossed $76 million domestically, literally saving the studio from filing Chapter 11. 27 years later, Poltergeist is unbelievably dated, campy and generally silly from beginning to end, but …