Following the online outing of the "" bootleg teaser in late March, the unauthorized teaser trailer of "The X Files" sequel as well as the film's poster leaked on the interwebs. The bootleg teaser, which takes a bit more than a minute to be viewed, is said to be taped from its preview at the Paley Film Festival on March 26, 2008, according to FileFront.com.
This leaked teaser contains scenes that are pretty much different from . It begins with the shot of some sort of a laboratory. Then, it quickly changes into a shot of a shocked girl which is followed by appearing words stating, "There are mysteries that cannot be solved." Further, the video footage continues with more glimpses into the film. Unlike in the previous teaser, this new teaser gives out the clearer look into the lead characters played by and .