Here is another licensed reprint that is often sold as an original poster. Zig-Zag, a publisher and printer from Germany, has produced licensed reprints for some of the Star Wars posters. The reprints for US style posters are undersized, I believe 24×36 instead of 27×41. However, Zig-Zag reprinted the unique UK Trilogy 3-in-1 poster. The reprint is the exact same size as the originals, 27×40. The only differences are a slightly bluer color around the Return of the Jedi title and the Zig-Zag copywrite information written below the ROTJ title. You should be able to spot the tag-line with a decent picture.

Here is a picture of an original trilogy 3-in-1 poster. Notice that the area around the ROTJ logo is teal and there is nothing written under the ROTJ logo.

              (click on thumbnails for full-sized photos)

Here is a picture of the reprint. You can easily see that there is some writing below the ROTJ logo and that the color is much bluer.

Finally, here is a close-up picture of the copywrite information.