The film did not play at the Aurora, Colorado movie theater where the 2012 mass shooting occurred during a screening of "The Dark Knight Rises". Three families of victims, as well as the mother of a witness, signed a letter to Warner Bros. with the request. Additionally, Landmark Theaters prohibited moviegoers from wearing Joker costumes during its run, while the Los Angeles and New York City Police Departments increased police visibility at area theaters, though they did not receive "any specific threat."