The chapel-like white cube within a country barn that is the Ayn Foundation’s Sagaponack, NY outpost is a perfect setting for painter Joa Baldinger, an under-the-radar modernist masquerading as a new image painter. Her obsessions with classic sixties movies surfaces in her riffs on details culled from Fassbinder. The motif is no mere structure of convenience: It is as if an isolated frame of film has been stretched open to reveal hidden, inner secrets of color and form.  “I Want to Talk About You” continues at the Ayn Foundation through September 12. 28 Hildreth Lane, Sagaponack NY 11962. www.aynfoundation.com