The first official trailer for the upcoming fourth entry in the ever-popular found footage horror franchise Paranormal Activity is set to be released this week, and in keeping with the new trend of actually doing marketing for trailers, a poster and an incredibly brief teaser trailer for the film have gone online today.  As far as I can tell, the teaser only offers footage from the previous films.  We know next to nothing about Paranormal Activity 4 other than the fact that Paranormal Activity 3 directors Henry Joost and Ariel Schulman have returned to take the helm with a script by The River producer Zack Estrin.

Hit the jump to check out the poster and teaser trailer, and be sure to check back here on Wednesday, August 1st to watch the first full trailer.  Paranormal Activity 4 opens on October 19th.

Via The Lebanese Cinema Movie Guide.