Hi. I am a distributor of a movie posters selling company who is partnered with a US supplier. Popular movies are in stock like Avengers, Hunger Games, Harry Potter, XMen, etc. For hard to find movies posters, we can order from the supplier, although it takes time.

Without Frames, posters are 1,500
With black acrylic sides and glass frames are 2,500.

Pick up are in Eastwood.

Here are other info from their company:
We work in partnership with US-based movie posters distributors. Our posters are all imported and brand new. Since we work directly with the source, our movie posters do not have the markings and the wear and tear typical of posters that have been displayed in theaters. As a rule, posters that have been displayed in cinemas are not for sale and are returned to the respective production outfits. In our case, our posters although coming from the same source, are not included in the batch for display. This gives our posters the edge of being in pristine condition. No folds or tears

you may message me for more information or orders.