How do you get a film made today? Do you start with a screenplay? Do you start by looking for funding? Do you shoot on film or go with digital? We’ll spend this hour with film makers who each have films in the AFI Dallas International Film Festival, which runs until April 1st. We’ll be joined by Amy Talkington, writer and director of “The Night of the White Pants”; Jeremy Coon, producer of “American Fork”; and Sian Heder, director of “Mother.”