‘Two Pianos’ Review: A Virtuoso’s Past Catches Up With Him at Dizzying Speed in Arnaud Desplechin’s Frantic Melodrama

Minutes into “Two Pianos,” two former lovers unexpectedly run into each other in the narrow lobby of an venerable Lyon apartment building, after several years of estrangement. In the real world, this would be a cue for some halting, awkward small talk, perhaps, or a passive-aggressive nod of acknowledgement, or just a simple cold shoulder. […]