Somebody used wallpaper glue to stick together 33 old movie posters and left them in a Pennsylvania attic for 80-years. They have been steamed apart and will be sold individually by Heritage Auctions for an estimated total of $250,000 or more. The 1931 “Dracula” poster with gekko-eyed Bela Lugosi is the star attraction.Some speculate the posters were stuck together for wall insulation. No one then dreamed the disposable one-sheets would become hugely valuable. An identical Dracula poster sold for $310,000 three years ago. Also in the March 21 sale are posters from James Cagney’s “The Public Enemy,” “The Front Page,” and “Little Caesar.” The Heritage consignor bought them at an auction in Berwick, Pa., last fall for $30,000, banking on the hope they could be unglued but not even knowing what posters were in the middle.