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Written, photographed, edited and directed by Oren Peli, Paranormal Activity is a supernatural horror movie that centers around a young couple, Katie and Micah, who are haunted by a supernatural being. It was first released on January October 14, 2007 as part of the Screamfest Film Festival. Afterwards, it was acquired by Paramount Pictures, modified and given a limited U.S. release on September 25, 2009 with a full release on October 16, 2009. The film earned about $108 million at the U.S. box office and $85 million internationally for a grand total of $193 million. Consequently, it is the most profitable film ever made based on return on investment.