There is some good news. Sony Pictures Classics' "Grandma" expanded well and IFC's German import "Phoenix" is building strong word-of-mouth success. But overall business is off. Last year's equivalent late-August weekend boasted six specialized films grossing over $500,000 in their later weeks. This year had none. And no new openings topped a $10,000 per theater average. Four more Sundance 2015 films opened this week.