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Fingerprint and eye scanners are now standard on smartphones and for security.

: The film’s director, Robert Zemeckis , is so influential that modern pop culture frequently references him, such as the "Zemeckis Cube" found in the movie Ready Player One . Back to the Future Part II (1989) - IMDb zurck-in-die-zukunft-2.ogg

: At the end of the film, when the DeLorean is struck by lightning, it leaves behind a flaming "99" in the sky. This represents the flame trails spinning as the car is knocked into 1885. Fingerprint and eye scanners are now standard on

The film featured news-gathering drones; today, drones are used for photography, delivery, and racing. This represents the flame trails spinning as the

: Doc Brown, Marty McFly, and Jennifer Parker travel to October 21, 2015, to prevent Marty’s future son from being incarcerated.