Variety reports:

The mayor of [Batman,] an oil-producing city in southeastern Turkey, ... is suing ... Christopher Nolan and Warner Bros. for royalties from mega-grosser "The Dark Knight."

Huseyin Kalkan, the pro-Kurdish Democratic Society Party mayor of Batman, has accused "The Dark Knight" producers of using the city's name without permission....

The mayor is prepping a series of charges against Nolan and Warner Bros., which owns the right to the Batman character, including placing the blame for a number of unsolved murders and a high female suicide rate on the psychological impact that the film's success has had on the city's inhabitants.

Former natives of Batman are also said to have encountered obstacles when attempting to register their businesses abroad....

Thanks to Jacob Berlove for the pointer.