There's a clip from Errol Morris' The Unknown Known. Ten years ago, Morris won an Oscar for another similar film about Robert S. McNamara, The Fog of War. Scott Feinberg's review in The Hollywood Reporter is pretty positive. It could be another Best Documentary Oscar contender for Morris.
Other reviews to have surfaced from Telluride recently, all from Variety: Scott Foundas isn't too enamoured with Jonathan Glazer's Under the Skin, but it certainly sounds like a most intriguing project. And I'm not too enamoured with his inability to understand the Scottish accent. Get over it. Leslie Felperin is impressed with Yuval Adler's Bethlehem, in particular Adler's command of the craft on his directorial debut. And a report on Sadourni's Butterflies from Peter Debruge mentions the film's avant-garde qualities, which seem to both interest and frustrate him.