A cool article and images here of text-less posters:
http://www.tvovermind.com/movies/amazing-collection-hi-res-textless-movie-posters
From what I remember movieposterdb.com was known for having HQ textless images of many of the best modern posters, presumably to encourage printing them.
Now its successor Cinematerial.com posts the following under all images:"Copyright by respective movie studios. Intended for personal use only and
strictly forbidden to reproduce as printed posters." Obviously an unenforceable warning....