“A Separation” is a frustrating sit, as both a dramatic endeavor and a motion picture viewing experience. Anxiety runs red hot in this Iranian production, which unfolds in a purposefully tangled style of lies and half-truths, forcing the characters to communicate in an unrelentingly argumentative manner. It’s an oppressive moviegoing encounter, but a film richly layered by writer/director Asghar Farhadi, who embraces the bulging passions of the players, forcing outsiders to feel the bind of contradictions and oppression of life in the Middle East. Expectedly, the volatility is penetrating, but the feature is methodical, stewing in every last moment of unease and contemplation, stretching to a point where Farhadi is practically lapping himself. Read the rest at Blu-ray.com