Quelle Bollywood 2015: http://uis.unesco.org/en/news/cinema-data-release
Quelle Hollywood 2017: http://data.uis.unesco.org/ — Links Culture auswählen, dann Feature Film Production, dann Feature Film Production (Method of Shooting)
Quelle Nollywood 2014: https://www.pbs.org/newshour/arts/inside-nollywood-the-booming-film-industry-that-makes-1500-movies-a-year