Movies set primarily in bars
I can think of three: Barfly (Mickey Rourke and Faye Dunaway are what the title says), Trees Lounge (name of the shabby bar where Steve Buscemi's character is also a barfly), and Cocktail (Tom Cruise tends bar). All three had scenes outside bars, of course, but I'm looking for movies where the main character working in or hanging around in a bar is what drives the story.
(Oh, I thought of another one -- The Lost Weekend!)