This is the third Iranian film I've seen, the others being Baran and Tam'e guilass (Taste of Cherry), ...
... they lack the gratuitous sex and violence of Hollywood films. Yes, I know a lot of people would cry censorship, because I know Iran has codes about what can and can't be made, ...
Even if severity and consequences are very different, censorship happens in the US all the time. The latest prominent examples were Polanski's The Ghost Writer, Hooper's The King's Speech and Schnabel's Miral, all of them international films getting a censored US release different from the rest of the world.
A recent example in the UK was Made in Dagenham. The director pointed out, that his target audience included young teenage girls, yet the fiulm got a 15 rating for a high count of the f-word. The director tried to change the BBFC's mind, whcih he couldn't, but Kermode simply said "should seen that coming"... It's obviously only an indirect example; the movie didn't reach all the audience it should have due to a higher rating.