True urban legends
This American Life recently had a show about urban legends that might be true. The second segment, about things foreigners believe about America, was particularly poignant. It talked about the things that foreigners are told happen in America, that they can’t actually believe are true. Partly the problem is the media. My experience is that many people in Europe believe that America is the way they see it in movies and TV shows–at least as far as crime and violence are concerned.