Penny Lane’s documentary “Hail Satan?” is among the most entertaining civics lessons to come around in a long time. Chronicling in jaunty manner the origins and growth of the Satanic Temple, which the IRS just recently recognized as a bona fide church, Lane’s movie shows how the Temple has enforced the First Amendment’s separation of church and state across the country. Lane, the director of “Our Nixon,” and “Nuts,” discussed her new movie, the underlying issues and just how much resonance it has in our religiously charged times. (Anyone catch that National Prayer Day at the White House?)