"Paranormal Activity" is the highest grossing R-rated thriller of the past decade, earning $100 million at the box office after only five weekends of national release.

The hit $15,000 supernatural flick began its theatrical life with midnight-only screenings in 12 college towns across the U.S. and quickly developed into a nationwide hit with fans visiting the ParanormalMovie.com website and demanding the film be brought to their city. After more than 1 million such requests, Paramount expanded the film nationally, where it has been playing to packed theaters ever since.

What is truly amazing about 'Paranormal Activity' is the depth of commitment from fans who demanded to see it, said Paramount Pictures Chairman and Chief Executive Officer Brad Grey. Adam Goodman, our head of production, believed in the film and championed it from the very first screening. This box-office milestone is also a testament to Oren Pelis considerable talents as a filmmaker. All of us at Paramount are proud to have been involved with his revolutionary project.

In "Paranormal Activity" after a young, middle-class couple move into what seems like a typical suburban starter tract house, they become increasingly disturbed by a presence that may or may not be demonic, but is certainly most active in the middle of the night.

Especially when they sleep. Or try to.

Directed, written, and produced by Oren Peli, the innovative thriller stars Katie Featherston and Micah Sloat. The film was co-produced by Jason Blum. Steven Schneider served as executive producer.