People love to be scared. That's how legendary actor John Carradine once explained the perverse allure of horror films for audiences. But what compels those who make the frightful flicks? This fascinating documentary pursues the answer, interviewing diverse authorities on the independent horror film, including Mark Borchardt ("American Movie"), Herschell Gordon Lewis ("Blood Feast"), cult film expert Joe Bob Briggs, and others. 82 min. Soundtrack: English PCM stereo; featurettes; theatrical trailers.