quote: ...his minister says he's a Coptic Christian.

Where did you see that, Lighter? Your SF Gate article doesn't say anything about it, and your Yahoo article says:
An official of the Coptic Orthodox Church in Los Angeles said in a statement Thursday that the church's adherents had no involvement in the "inflammatory movie about the prophet of Islam." An official identified as HG Bishop Serapion, of the Coptic Orthodox of Los Angeles, said that "the producers of this movie should be responsible for their actions. The name of our blessed parishioners should not be associated with the efforts of individuals who have ulterior motives."

The only other things I've seen have been Klein and Nakoula saying that he's a Coptic Christian. The only groups I've seen him linked to are National American Coptic Assembly and Media for Christ, which aren't churches.