Fox has released the official theatrical movie trailer for the upcoming sequel “The X-Files: I Want to Believe” by director Chris Carter (The X Files: Revelations) and starring David Duchovny and Gillian Anderson.

Synopsis: David Duchovny and Gillian Anderson reprise their roles as Fox Mulder and Dana Scully with this long-delayed big-screen continuation that revives the series six years after it headed off the air in 2002. Creator Chris Carter returns to direct, co-writing the script with series veteran Frank Spotnitz for 20th Century Fox. Billy Connolly, Amanda Peet and rapper Xzibit co-star in the stand-alone sequel. – Jeremy Wheeler, All Movie Guide

X-Files: I Want to Believe will be In theaters July 25, 2008.