A teaser trailer has been released online for Paranormal Activity 3, the third installment in the low-budget shock series. Henry Joost & Ariel Schulman of Catfish fame are the directors behind the movie. The original movie, directed by Oren Peli, earned $193 million at the box office on a $15,000 budget. The follow up Paranormal Activity 2, directed by Tod Williams took in $156 million worldwide on its release on a $3 million production budget. Paranormal Activity 3 hits theaters October 11th. Hit the jump to check out the trailer.