At first, Audience of One comes across as an amusing lark of a documentary, like a real-life Waiting for Guffman about a megachurch pastor obsessed with filming a science-fiction epic for Jesus. The evangelicals, who have never made a movie before and don't understand the basics of filmmaking, seem like cuddly doofuses—slightly misguided, but well-intentioned. But Audience builds to a phenomenally intense climactic sermon that boldly leaps over the line between typical organized religion and Scientology-level insanity. It's a shocking documentary about what happens when a group of trusting people put too much faith in one lunatic. (Northwest Film Forum, 1515 12th Ave, 829-7863. 5, 7, and 9 pm, $9.)