When Ben Stein's Expelled movie was released, it was criticized by some skeptics because they thought that the crew had used duplicitous methods to conduct their interviews. Whether that was the case or not, I do not know, but it seems as though the newly released Religulous movie (starring Bill Maher) not only used extremely deceptive tactics to secure their interviews, they also needed to sneak past security to do so … see here:

http://www.tektonics.org/religuguff.html#cmvisit

Sad that they had to resort to such tactics … sadder still that such a movie was made at all. I'd love to see a serious film depicting the religious excesses in North America done with charity and made with the purpose of making things better … but this is clearly not such a film. One review mentioned Maher as being the "Michael Moore of religion" (due to his pseudo-documentary style) … not necessarily a compliment, there.