A 
            reprint is a commercial reproduction of the movie art released at 
            the theater. Reprints are primarily divided into 2 major categories: 
            Commercial size reprints and theater size reprints. Even though 
            both sizes are still commercial reprints and therefore have no collectible 
            value, there is still a big difference in their handling and acceptance. 
          Commercial 
            size reprints
          A 
            commercial size reprint is a commercial  poster printed with the movie art image. These posters are 
            produced by the regular commercial printers that pay the royalties 
            to the studio to use the one sheet artwork. They normally measure 
            24"x36" or smaller and are sold through normal retail 
            and discount stores. 
          Theater 
            size reprints
          The 
            theater size reprints are a different story. These posters are normally 
            produced in Europe and shipped to the United States. They take a 
            larger printing press to produce the 27"x40" theater size. 
            Some are marked with the printers, like Zig Zag, across the bottom 
            to mark the reprint, but others have no reprint markings at all.To 
            non-collectors, these are GREAT! You can get theater size posters for classic movies like Godfather, Jaws, Star Wars, 
              Breakfast at Tiffany’s and Casablanca that actually look BETTER than the originals because: they don’t have fold lines; 
            they’re on a glossy paper; they don’t have the wear; AND they’re 
            at the GREAT reprint price. What more could you ask for!!!!!!To 
            a collector, as long as you’re dealing with movies before 1984 (these 
            were shipped folded) or posters that actually had a white border 
            (these were 27"x41"), is easy to tell the difference. 
            But newer releases are becoming so close that, more and more, these 
            are becoming a problem to the collectors’ world. With the increase 
            in printing technology, these theater size reprints are being printed 
            on the same quality paper, and are becoming harder to distinguish 
            from the originals. In the last few years, collectors have started 
            shifting to the light box posters double-sided to help distinguish the difference. Some collectors base their whole 
            collections on them. NOW BEWARE, there is one printer that has started 
            printing double-sided reprints in Europe which will really become 
            a problem. Even though they haven’t been widely distributed YET, 
            because they’re a lot more expensive to print, expect to see these 
            collector’s nightmares raise their heads when there’s a major poster 
            that will make it worth while.
          For more 
            info see Difference