A thriller set in a remote region of Bulgaria, Western centers on a group of macho German construction workers who come to town to build a dam. They invariably clash with the locals, suggesting that the film is making a commentary on the European Union and its treatment of outsiders. The film makes its local debut tonight at 6:45 at the Cleveland Institute of Art Cinematheque, where it shows again at 8:25 on Sunday night. Tickets are $10, or $7 for Cinematheque members and students. (Niesel)