After the 1980s, when movie studios started to do a lot of the things that the NSS did themselves, a lot of the older movie poster sizes went out of production. Replacing a lot of them was the mini-sheet, a small poster of various sizes.
In most cases, the mini-sheet is an exact replication of the movie's one sheet, except that it's smaller.
Mini-sheets are printed out in large quantities a lot of times, and given out to the public. This big supply and low demand doesn't make them a real serious collectible.
Technorati Tags: 
