Which 2016 film pioneered an elaborate fake corporate website and LinkedIn profiles for fictional characters as part of its marketing strategy?

Film studios have evolved their marketing strategies dramatically in the digital age. From traditional billboards to immersive AR experiences, the way movies and TV shows are promoted has transformed to capture audience attention in increasingly creative ways. This poll tests your knowledge about one innovative marketing campaign that changed how blockbusters are promoted.

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Deadpool (with fake dating profiles and irreverent billboards)
The Martian (with a series of NASA-style 'training videos')
Ghostbusters (with a fake paranormal investigation business website)
The Accountant (with a fully functional Wolff & Associates accounting firm website)