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The Most Profitable Film of All Time Is Paranormal Activity
Thanks to its microscopic budget and major success at the box office, the 2007 film Paranormal Activity, scored a return on investment of 19,758 percent, absolutely blowing away the next most profitable film (2015 horror film Gallows, with an ROI of 6,843 percent). It cost just $60,000 to make and another $400,000 or so to market, yet ultimately brought in more than $89 million.