We saw the original French version with English subtitles. Except for a few moments, it was almost entirely in black and white.
"Persepolis" is the bildungsroman ("coming of age story") of Marjane Satrapi -- specifically her childhood in Iran during the Islamic revolution in the late '70s to her young adult years in the early '90s.
It was a tremendous piece of film-making. Check out the New York Times review for a good description and on-the-mark rave.
What I most took away from the film was that we must be watchful that God is not used as a means of forced social control (as in Iran).
Sacred scripture, faith, spirituality, prayer, religious devotion -- these should promote love -- not hate of the non-believer, the non-conformist or the political opponent.