Bollywood, formally known as Hindi cinema, is the Indian
Hindi language film industry, based in the city of
Mumbai (formerly Bombay),
India. Bollywood is part of the larger
cinema of India (also known as Indywood),
 which includes other production centers producing films in other
 Linguistically, Bollywood films tend to use a
colloquial dialect of
Hindustani, mutually intelligible to both Hindi and
 while modern Bollywood films also increasingly incorporate elements of
Indian cinema is the world's largest
film industry in terms of film production, with an annual output of 1,986 feature films as of 2017, and Bollywood its its largest film producer, with 364 Hindi films produced annually as of 2017.
 Bollywood represents 43% of Indian net box office revenue, while
Tamil cinema represent 36%, and the rest of the regional cinema constitute 21%, as of 2014.
 Bollywood is also one of the largest centers of film production in the world.
 Furthermore, Bollywood is one of the biggest film industries in the world in terms of the number of people employed. By tickets sold, it is the largest film industry in the world. According to J. Matusitz and P. Payano, in 2011, over 3.5 billion tickets were sold across the globe, which in comparison is 900,000 tickets more than