New Independent Studios Blockbusters, Teen Angst, Young Upwardly-Mobile Professionals, and the Dawn of the Sequel: The average film budget by 1978 was about $5 million - increasing dramatically to $11 million by 1980 due to inflation and rising costs. A movie ticket at a first-run theater cost around $2.50 By the end of the 80's, the average film budget was over $18 million. The price of a movie ticket had gone from $3 to $4 during the course of the decade. (1 jan 1978 ano – 31 dez 1989 ano)

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http://www.filmsite.org/70sintro.html
http://www.filmsite.org/80sintro.html
http://www.nytimes.com/1985/07/08/movies/the-sequel-becomes-the-new-bankable-film-star.html

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