October 30, 2026

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Paranormal Activity (2007)

Paranormal Activity 2007 official movie poster

Paranormal Activity is a found-footage horror film written, directed, shot, and edited by Oren Peli. A San Diego couple sets up a camera in their bedroom to record what has been moving through the house at night. Shot in 2006 at Peli’s own home for about $15,000, it sat in festival circulation until Paramount released a revised cut in September 2009. Katie Featherston and Micah Sloat play the couple.

At a glance

Release date October 14, 2007 (Screamfest); September 25, 2009 (United States)
Director Oren Peli
Writer Oren Peli
Starring Katie Featherston, Micah Sloat, Mark Fredrichs
Runtime 86 minutes
Rating R
Genre Found-footage horror
Budget About $15,000
Box office About $108 million domestic; about $193 million worldwide

Plot summary

Katie has been followed by something since childhood. She and Micah have just moved in together. He buys a camera, against her wishes, and points it at the bed. The days are ordinary. The nights are time-stamped and mostly still, until a door moves, a sheet shifts, or footprints appear in powder Micah has scattered in the hall.

A psychic visits and tells them this is not a ghost that can be cleaned out of a house. He leaves. Micah keeps filming and starts taunting whatever is in the room. Katie sleeps more, argues less, and begins to stand beside the bed for hours.

Spoiler section: the ending

The theatrical cut ends with Katie walking out of the bedroom after a scream. There is a thud. She returns holding a knife, her shirt bloody, and sits rocking beside the bed until the police arrive. An earlier festival cut used a different last shot, with Micah’s body thrown at the camera. The version most people know is the quieter one.

Production and behind the scenes

Peli shot the film in a week in his San Diego house. Featherston and Sloat were unknowns. Much of the dialogue was improvised inside an outline. The effects are practical and small: a sheet pulled by a wire, powder, a door on a line. Steven Spielberg saw a cut and suggested the ending that replaced the original festival finish. Paramount bought the film and opened it in college towns before going wide.

Release and reception

Screamfest screened it in 2007. The Paramount release began September 25, 2009. Domestic gross landed near $108 million. Worldwide, about $193 million. Sequels followed on a near-yearly schedule. None matched the first film’s gap between budget and gross.

Cast

  • Katie Featherston as Katie
  • Micah Sloat as Micah
  • Mark Fredrichs as Dr. Fredrichs
  • Amber Armstrong as Amber

Trivia

  • The budget figure usually quoted is $15,000.
  • Featherston and Sloat use their own first names.
  • The theatrical ending was a reshoot after Spielberg’s note.
  • Night scenes are a locked-off frame.
  • Runtime is 86 minutes. Rating is R.

Related on this site

Insidious (2010), Sinister (2012), and The Invisible Man (2020)

Trailer

The Original Improvised Auditions

Director Oren Peli shares the entirely improvised audition tapes of Katie Featherston and Micah Sloat.

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