13 Haunting Facts About ‘Paranormal Activity’

When it was released theatrically in the fall of 2009, Paranormal Activity surprised everybody with its low-budget thrills and huge box office take. Made on a micro-budget of $15,000 by first-time director Oren Peli, the film grossed nearly $195 million worldwide. Here are some spooky facts about the spine-chilling film that started it all.

Paranormal Activity is the third most profitable film of all time.

Often compared to The Blair Witch Project because of its low-budget nature and huge grosses, the original Paranormal Activity ousted the earlier horror film in 2009 to become the third most profitable movie of all time, based on return on investment (ROI); it also spawned six sequels.

Oren Peli had never worked on a movie before Paranormal Activity.

Oren Peli’s background was as a software developer, a skill that provided him with the technical know-how to shoot a low-tech movie. “I’ve always been very comfortable with computers and software, so one thing that’s made my life easier is the fact that I was very quickly able to figure out how to edit the movie, how to do the audio mixing, and the CGI that’s in the movie,” Peli told Moviefone in 2009. He used a home movie camera, filmed in his own house, hired unknown actors who helped with the production, and edited down 70 hours of footage.

The movie was partly inspired by sounds Peli was hearing in his own home.

When Peli and his girlfriend at the time moved into a new house in San Diego, strange things began to happen. “There were strange noises at night that made us both jumpy. You know, stuff falling off shelves,” Peli told The Guardian in 2009. He toyed with putting a camera in their bedroom to see what was happening while they were sleeping, then turned that idea into the movie. “I thought the basic concept of setting a video camera up at night when you’re asleep and vulnerable was pretty scary because it plays on people'’s primal fear.”

A classic movie played a role in Peli’s own primal fear. “I saw [The Exorcist] when I was 11,” he said. “It totally freaked me out. After that I couldn’t watch any movie that had anything to do with a haunting or a ghost. I was in my mid-teens when Ghostbusters came out and although I knew it was a comedy, I couldn't handle the idea of it. I didn’t see another horror film until I was well into my twenties.”

The filmmaking process was collaborative ...

There was no script for the movie; instead, the actors were provided outlines for the action and largely improvised. Micah Sloat said in an interview that he often was providing comic relief and that “Oren would rein me in and be like, ‘Remember, this is a horror movie.‘” In a 2013 interview, actress Katie Featherston recalled the input she had around crafting her character, who didn’t have a job, which didn’t feel right to her. She told Peli, “I can’t just be hanging out. I’ve got to have something that I’m doing with my life in this movie. How about I’m a student. I’ll be an English student and working toward being a teacher.” Peli was on board. “There was a lot of freedom there to create and, as an actress, that was so exciting and thrilling,” Featherston said.

The movie kicked around the film festival circuit for a couple of years.

Paranormal Activity premiered at Los Angeles’s Screamfest in 2007, where Featherston won an award for Best Actress. Producer Jason Blum helped Peli get an agent, and they started submitting the film all over town looking for a distributor. Though they failed to get the movie into Sundance, it did screen at Slamdance, another Park City, Utah, film festival, in January 2008. DreamWorks originally wanted to remake the film, but eventually decided it was scarier as it was.

Steven Spielberg supposedly thought his Paranormal Activity DVD was haunted.

As the urban legend goes, Spielberg, whose DreamWorks Studios was considering distributing Paranormal Activity, took a DVD of the movie home to watch, but then got freaked out when the door to his bedroom locked by itself. “So the whole story about how the doors to his bedroom got locked from the inside ... personally I believe it,” Peli told Moviefone. “It’s not something the marketing department just came up with before releasing the movie.” Spielberg famously carried the DVD to work in a trash bag because he thought it was haunted. Despite the shock, Spielberg loved the movie and even suggested a new ending, which is the one audiences ended up seeing in the theatrical release.

Peli filmed three endings to the movie.

Speaking of the ending: The above video simultaneously shows all three endings, with the original being twice as long as the others. The original entails cops coming into the house the next day and shooting and killing Katie. The alternate ending features Katie gruesomely slitting her throat, and the theatrical ending is what most people saw in the theaters when Katie supposedly kills Micah and becomes possessed by the demon. According to Entertainment Weekly, there was also an ending they never filmed: “A possessed Katie corners Micah and bludgeons him with his precious camera, while viewers watch from the camera’s POV.”

Producer Jason Blum has been nominated for two non-Paranormal Oscars.

Around the time of Paranormal Activity’s film festival circuit success, Jason Blum was working for Miramax and hooked up with Peli to help him edit the film. Blum earned a co-producing credit on the first film (and its subsequent sequels). Besides producing other horror franchises like Insidious and The Purge, Blum has earned two Best Picture Oscar nominations for his producing work on Damien Chazelle’s Whiplash (2014) and Jordan Peele’s Get Out (2017). Blum is also the recipient of two Emmy Awards for executive producing work on Ryan Murphy’s The Normal Heart (2014) and Andrew Jarecki’s The Jinx: The Life and Deaths of Robert Durst, both for HBO.

The movie kickstarted the found footage genre.

Though 1999’s The Blair Witch Project was hardly the first found footage film (many say that distinction belongs to 1980’s Cannibal Holocaust), it generated new interest in the format. Still, audiences would have to wait until 2008’s Cloverfield, which was a modest hit, and another year for Paranormal Activity (which was filmed in 2006) to start seeing found footage films emerge as their own subgenre. To this day The Blair Witch Project remains the highest-grossing found footage film of all time, though.

Peli’s next movie bombed at the box office.

A few weeks after Paranormal Activity became a smash hit worldwide in the fall of 2009, Paramount secured the rights to Peli’s next found footage film, Area 51. Budgeted at $5 million, the film got held up for six years until it was released on May 15, 2015, with a week-long limited theatrical run at Alamo Drafthouse theaters and on VOD. The film was eventually released in just 16 theaters and only managed to gross $7556—a far cry from Paranormal Activity’s phenomenal ticket sales.

Alec Baldwin and Steve Martin parodied Paranormal Activity at the 2010 Oscars.

You know something has invaded the pop culture mainstream when it starts being parodied, which is exactly what Oscar co-hosts Alec Baldwin and Steve Martin did during their opening segment at the 2010 Academy Awards. The premise was that they just happened to be sharing the same hotel bed, and Martin set up a camera to record their sleeping habits. Martin thrashes around all night and at one point gets up and slaps Baldwin. No ghosts here; just terrible sleeping companions.

Paranormal Entity tried to capitalize on Paranormal Activity’s success.

Two months after Paranormal Activity was released, a film called Paranormal Entity used a similar surveillance format to create a story that may or may not be real. Three more movies were made to coincide with the Paranormal sequels: 8213: Gacy House (Paranormal Entity 2), Anneliese: The Exorcist Tapes (Paranormal Entity 3), and 100 Ghost Street: The Return of Richard Speck (Paranormal Entity 4). None of them managed to even come close to the success of the series they were trying to emulate.

The stars have reunited for a podcast.

Featherston and Sloat recently launched a podcast called Paranormal Activity: True Tales of Possession that “examin real-life stories of demonic possession, tracing the phenomenon from its earliest known accounts to its modern-day headlines” and includes “noted experts in witchcraft, shamanism, exorcism, and parapsychology.” You can listen on Audible.

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A version of this story ran in 2015; it has been updated for 2024.