This had a good premise (dead people wandering around New York City and when living people walk through them, they sneeze) but was ultimately a mediocre movie. Part of the problem was that Ricky Gervais’ character swung through several different personalities in the course of the film. This wasn’t unpleasant to watch, which makes it a good “flu” movie, in my book.
poster from: http://www.impawards.com/2008/ghost_town.html