Ensemble cast a winner

There’s a lovely sensibility operating here as Yaron Zilberman explores the dynamics of a long-associated group of four people when one of them threatens to depart. 

They, cellist Peter (Walken), first violinist Daniel (Ivanir), second violinist Robert (Hoffman), and his wife, violist Juliette (Keener), are the Fugue, a celebrated string quartet that has been performing around the world for 25 years. 

But all is not