Which film product development innovation generated an estimated additional $8 billion in annual revenue for Hollywood studios within five years of its mainstream adoption?

The film industry has seen numerous pivotal product development decisions that transformed how movies are made and consumed. Some innovations created entirely new revenue streams, while others revolutionized the viewing experience. This trivia question focuses on a watershed moment in film industry product development that altered Hollywood's business model forever. Test your knowledge about the business decisions behind the entertainment!

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The introduction of DVD special editions with bonus features and director commentaries
The development of CGI technology that enabled franchises like Marvel and Avatar
The creation of the home video rental and purchase market through VHS format standardization
The implementation of digital projection systems that reduced distribution costs