If anyone's looking for original authentic movie posters I just opened an Etsy store and am selling a bunch on there. I have 500+ posters from over the years (late 90's to mid 2000's with a few 80's and recent ones here and there). Not all are posted yet only about 130 so far. I'm in Canada, but will ship worldwide. (Free Shipping in Canada right now)
https://www.etsy.com/ca/shop/MoviePostersNow