The first entertainment industry documentaries emerged in the 1960s and 1970s, with films like "Woodstock" (1970) and "The Last Waltz" (1978) showcasing the music industry. In the 1980s and 1990s, documentaries like "The King of Comedy" (1983) and "The Filth and the Fury" (2000) offered a glimpse into the lives of comedians and musicians.