What is a double-sided poster?
This means the print is on both sides. Most times the print on the back is a mirror-print of the front and sometimes the colors are different (purple/red) or a few shades lighter. They are designed to be used in lightboxes in theater lobbies. Double sided vs. Single sided: There is some controversy surrounding this issue, in that many dealers hate to think of double sided one sheets as more valuable or rare than their original year single sided counterparts. In fact, double sided one sheets for titles for which single sided one sheets do exist are far more rare. They are also printed on better paper. Reprints were almost never made in the double sided format, so most owners of such posters were, until recently, assured of owning an original. However, for some titles double sided one sheets do not exist at all. Sometimes the opposite is true, and all the copies printed for a poster are double sided. Most original first print runs are double sided, and following that everything is single