Which pioneering data analytics technique did Netflix first use that revolutionized how film studios understand audience engagement?

Major film studios have revolutionized their approach to audience engagement through sophisticated data analytics. From predicting box office performance to personalizing marketing campaigns, data has become as crucial to film success as the creative elements. This poll tests your knowledge about how modern studios leverage retail data analytics to understand viewer preferences and optimize the theatrical experience.

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Collaborative filtering algorithm that powers the 'recommended for you' feature
Sentiment analysis of social media posts about competing studios' releases
Facial recognition in theaters to track emotional responses during screenings
Predictive analytics based solely on actors' social media follower counts