Original posters are posters that were released when the movie first came out. A re-release, also known as a re-issue, is a poster made when the movie was re-released after the original date. Originals and re-releases cost more than reprints because they generally increase in value over time. Original and re-release posters offer the new collector a great hobby which can also be financially rewarding as well as a lot of fun.
All prices are in GBP.