Aki Mikami - Specializing in the Japanese edition of American and European movie posters.
Ciné-Images International - Dealer of French posters including classic French cinema and US movies. French and English site.
Cinémaffiche - Original movie posters for collectors. Most of them are French, of all sizes, and some are on linen, from muted cinema to nowadays. Site available in English or French.
Classic Polish Film Posters - Cinemaposter.com - Classic Polish film posters : database search, info, images.
Posterman - An online dealer of vintage film posters indexed by title, director, and featured actors. Dealer accepts payment via credit cards, checks, and paypal.
Spanish Film Posters - An Online merchant specializing in Spanish versions of posters for popular American movies. Availability of inventory is done via email and payment is made via paypal.