Trouble the Water isn't the most comprehensive Hurricane Katrina documentary, but it's a damn compelling reminder of what happens when a half-decade of indifferent Republican leadership meets a natural disaster meets racism. Aspiring rapper and Ninth-Ward resident Kimberly Rivers Roberts filmed her neighborhood during the breezy, uncertain hours before the storm and kept the video running as she and her family fled, terrified, into their dark, cramped attic: "If you don't have money, and you don't have status, you don't have a government." Just in case you forgot why this election is so important. (See movie times, www .thestranger.com, for details.)