If you head on over to BDTV you can watch a promo clip that teases a new trailer coming this Monday for 20th Century Fox’s X-Files: I Want to Believe. The clip features a brief interview with stars David Duchovny and Gillian Anderson who talk about their roles as Scully and Mulder. The truth is out their on July 25, 2008. Click the title for posters, stills and more. Check back for the trailer link Monday.