According to Margot Kidder, she and Howie Mandel were unaware that this was a Christian film until well into filming. Kidder is an atheist and does not agree with the message this film presents.
Franco Macalusso is the Anti-Christ. He sometimes wears glasses. This would not occur in reality because the Anti-Christ is Satin... a fallen Angel, and he cannot be killed. Therefore, he would not need glasses to correct his vision.
Tom Canboro: Anybody who starts a sentence with "UFO," "extraterrestrial," "alien," or "Jesus Christ" -- I don't have to listen to the rest. Because I know what's coming.