Unlike the most local dialects which are used primarily in the metropolitan centres, Bombay Hindi is widely known throughout India, as a result of its frequent use in Bollywood movies. Initially, this dialect was used to represent crooks and uncouth characters. According to Shoma A. Chatterji, "Indian films have the unique quality of different characters speaking different varieties of Hindi according to their social status, their caste, communal identity, education, profession, financial status, etc. [...] The villain's goons, speak in a special vulgarised, Bambaiya Hindi concocted specifically to typify such screen characters in Hindi cinema.". A particular genre of movies, named Munnabhai, in which the lead characters - being members of the Mumbai criminal underworld - speak entirely in this dialect, helped to spread the dialect.