I did like A Separation for how it drew you into its ethical dilemmas, and also how it kept the truth hidden from you as much as it was for the main character who acts a witness to the unfolding conflict. I also thought the last scene was a beautiful counterpoint to the heaviness of the film.
A Moment of Innocence, Close-Up, Where Is My Friend's Home?, and Persepolis are next up on my watch list. A Moment of Innocence is a bit hard to find and seems to be available only on DVD.
I thought A Girl Walks Home Alone at Night was pretty entertaining. It was made in the U.S., but by an Iranian-American and its setting is fictional (“Bad City”) with Persian dialog. It has a Jim Jarmusch feel to it.
As an Iranian cinephile, that's a good list. My favourite is probably Persepolis but I'm biased as my coming of age story is very similar to the story's heroine.
