Persepolis is, perhaps, the best story ever told. Marjane Satrapi has a very simple yet enchanting way of taking people through the life of a nine year old girl who grows in revolutionary Iran, (later taken over by fundamental Islamists) and moves to Vienna all vulnerable. It is the story of this enduring girl who struggles between being a true Iranian at heart and fighting the tyranny that now governs the society.
To me, this movie was a great example of the experiences that come along with cultural chages and the perspectives one is exposed, and involuntarily given, while going through such drastic events in their lives.
Even though the writer only portrayed Iran as the "deeper and more complexed culture" as opposed to the modern day view of fundamentalism, fanatacism, and terrorism, clearly, this viewpoint applies to all the people suffering under these generally held misconceptions and prejudices.
And so, I highly recommend watching it to get a real glimpse of the worlds beyond our world.
The second one is called Children of Men and is adapted from a novel. Accoring to my friend who has read it, it is quite different from the book itself but is very impactful. It portrays a futuristic society where all the women are infertile, there are no young babies or even children, and the world's in a chaos and in a state of exile.