Why Paranormal Activity was one of the most successful movies ever made, in one chart - Vox
Paranormal Activity 3' sets box office records. Can another sequel be far behind? - The Washington Post
MOVIECLIPS - In honor of 'Paranormal Activity 2's' release ten years ago, we're taking a look back at the box office for the entire 'Paranormal Activity' franchise. Which one do you think
Paranormal Activity 4' fails to inspire Halloween thrills at box office - The Collegian
Your Box Office Explained: You Can't Call Paranormal Activity 4 Anything Other Than a Success
Paranormal Activity 3 Made How Much?! - E! Online
Amazon.com: Paranormal Activity: The Ultimate Chills Collection : Lauren Bittner, Daniel Boland, Molly Ephraim: Movies & TV
Your Box Office Explained: Paranormal Activity 3 Scares Up Big Money
Amazon.com: Paranormal Activity - The Ultimate Collection (Movies 1-5) : Katie Featherston: Movies & TV
Box office report: 'Paranormal Activity 4' possesses top spot with $30.2 million | CNN
Paranormal Activity - Rotten Tomatoes
The biggest box office booms and busts since 1982 | Dr. Randal S. Olson
Paranormal Activity 2 keeps Paramount top of the pile | Movies | The Guardian
Dome knowledge on Twitter: "Posted @DomeKnowledge "Paranormal Activity" only cost $15000 to make - the film earned $193 million worldwide at box office, making in the most profitable horror movie in history. . . #
Box Office Report: 'Paranormal 4' Wins With $30.2 Million; 'PA5' Set for Oct. 2013 – The Hollywood Reporter
Hollywood sees year of 'Paranormal Activity'
Paranormal Activity 4 Wins the Weekend Box Office, Watch the "Honest" Trailer
Box-Office Bloodbath: 'Paranormal' Slays 'Saw VI' - TIME
Paranormal Activity: The Marked Ones - Wikipedia
Paranormal Activity 4' tops weekend box office with estimated $30.2 million
Paranormal Activity 2 - Box Office Mojo
Paranormal Activity Continues With New iTunes Comic | WIRED