MIDDLEBURY — Nineteen trips, three documentary films, and a book later, Sas Carey decided to do things a little differently for her fourth film about the nomadic reindeer herders of northern Mongolia who she’s been following since 1994. “I’m doing everything weird,” she said at her Middlebury home during an interview last week. “I’m doing everything my own way.” Doing things her own way is nothing new for Carey. And we’ll get to see just what she’s taking about during a pre-screening of her latest film, “Tr … (read more)