Apparently whenever US movies were released in Soviet-era Poland, the posters were discarded and replaced by new versions by Polish artists. Alternately disturbing and frickin' awesome, and often containing political comments of varying subtlety. Previously.
The always great (and frequently linked) RetroCrush currently has an exhibit on Polish movie posters for western films; seemingly devoid of the original branding & identity art, it's fun to try and guess what movie the images could even be trying to promote. Some are beautiful, some are amateurish, all are intriguing.
Freedom on the Fence: The Polish Poster. While we're at it: The history and culture of the Polish poster and an analysis of American Films in Polish Posters. Or, if you'd prefer, The Classic Polish Film Poster database (where the Disney/Children's film posters are quite lovely). Also, The Wallace Library at the Rochester Institute of Technology has a fantastic searchable and browse-able database, with many hi-res images. Finally, some other Polish Poster Galleries. (What's that? You want more? You want artist-specific galleries? Okay. Here's work by Mieczyslaw Gorowski, Piotr Kunce, Wieslaw Walkuski, and Jan Sawka. Oh, you wanted Communist-era Polish propaganda posters? Fine. Here ya go.) [previous MeFi discussion on Polish film posters; also, some of the images from these links may be NSFW, depending on how S your W environment is.]
Polish movie posters. The Polish Poster Gallery has a fascinating collection of artist renditions of american movie posters. The collection compares favorably with the 50 Greatest Movie Posters, as listed by Premiere magazine.
polish posters not only does poland have the best cinematographers, but their movie posters are really awesome, too. inflammatory, erotic, surreal, and cute... well, not cute :) truly art as advertisement and good for decoration!