Below you will find a detailed explanation of the most terms used to describe the movie posters available from Starstills:
Original:
An original movie poster is one that is displayed in cinemas/movie theatres to advertise films coming soon and on release. They are of extremely high quality and are very, very different to cheap mass production posters found in high street chain stores.
Reprint:
A reprint poster is one that has been reproduced from the original poster.
Double Sided:
Double-sided posters have the same artwork on the front and backside. The artwork on the back is reversed (in lighter shading). These posters are displayed by cinemas in "light boxes". Because of the reverse artwork on the back