The quote really was part of the film. See the clip here, if you don't believe me.
Welcome now to this week's quote! Maintenant, remember the rules. First person to guess correctly the original source of the quote wins a prize - no movie characters quoting other movies. No Googling or asking Jeeves, either you know the quote or you don't. The prize is a Major Award and consists of the people's ovation and fame forever (and the title of Iron Quote-Guesser):
Next time someone asks you if you’re a god, you say YES!