Whether you saw it or not the 1984 movie, A Nightmare on Elm Street, is perhaps one of the scariest films of all time, according to the Association of Mature American Citizens. And if you like scary things it -- the Elm Street house, not the film -- can be yours for a mere $3.5 million. The house, located in Hollywood, was put up for sale in time for Halloween by the realty firm, Douglas Ellima...