Cloverfield - Viral

Cloverfield is a 2008 American science fiction found footage monster film directed by Matt Reeves, produced by J. J. Abrams and Bryan Burk, and written by Drew Goddard. Before settling on an official title, the film was marketed as 1-18-08. The film follows six young New York City residents attending a going-away party on the night that a gigantic monster attacks the city.

 From http://en.wikipedia.org/wiki/Cloverfield