You know, I would attach the trailer, but I'm honestly not a fan of it at all...it's really a film where you should go into it not knowing too much. Anyhow, this film deserves it's own thread. Here's part of what I wrote about it on another site, keeping it spoiler-free.
I've come to see A Separation as a film of different vantage points. One might say "separate" point of views, which are forcibly put into contact with one another. Often seen through windows and encased in frames, characters are often cornered into making choices that reflect upon their moral beliefs and judicial values, among other things. The reason why the deft twists and turns the narrative takes (which I don't wish to spoil) somehow registers as organic instead of contrived is due to the detailed characterizations that explore the actions of all those involved, whether they be major players or minor parts in the story. Farhadi thus shows the different ways characters view the ever-worsening and increasingly destructive situations they are put in, with distinctions of class, gender, and religion driving much of the conflict, sometimes all at the same time. Where Farhadi's humanism shines is not simply in detailing the differences among the characters (though it's clear that everyone has their reasons), but in his depiction of the similarities inherent in them: they yearn for integrity but are capable of deception, and even if they ultimately wish for the good of others, their selfishness causes them to, sometimes willfully, inflict harm.