About halfway through The Unspeakable Act, Dan Sallitt’s spare, somber, unflinching 2012 feature, teenager Jackie (Tallie Medel) begins attending therapy to address the underlying issue at the heart of the movie’s title: an attraction to her older brother Matthew (Sky Hirschkron). It’s not that she’s embarrassed; she just has to grapple with those desires while

Tallie Mendel reprises their role as Jackie, whose feelings for her older brother reignite when she learns that he expects a child.