Iranian director Bahman Ghobadi, whose film "Half Moon" has been highly praised at the San Sebastian Film Festival, has said it is increasingly difficult to work in Iran, where his latest movie has been banned because a woman sings in it. "Half Moon" tells the story of a group of Iranian Kurd musicians en route to a concert in Iraq but includes a taboo subject: women singing. "In my country it is forbidden to listen to a woman's voice," explained the film director. And in the film the musicians are accompanied by a female singer, Hesho, whose voice is heard several times during the film. Virginie Grognou reports.