I found "I Want to Believe" a decent addition to the X-Files canon. While not of the same quality as some of its best episodes, I think it was a not so bad stand-only example for those who have never seen the show while entertaining the followers. I found the antagonists' storyline less than fulfilling. However, the ideas about beliefs are phenomenal whether belief in God (Father Joe), belief in the metaphysical (Mulder), or belief in science (Scully).