I kid you not. So far I've seen a TV report and two news articles online.
http://www.theregister.co.uk/2008/11...y_sues_batman/
"The mayor of Batman, Turkey, is suing Warner Bros. and The Dark Knight director Christopher Nolan for using the Cape Crusader's name without the city's permission."
Might want to protect any Batman case mods and inspired art while you're at it guys... Probably a good thing we don't have any Batman smilies either.