The Thin Line Festival in Denton has traditionally been a documentary affair, and nonfiction remains the focus. But this year's festival, which runs through Sunday, is mixing in some narrative film based on true stories. Also... Armageddon? As the festival's name suggests, it can be a thin line between truth and fiction. We caught up with festival film program director Stanton Brasher and discussed this year's event on KERA podcast, The Big Screen.