The Swiss government said the US has officially requested the extradition of imprisoned director Roman Polanski for having sex in 1977 with a 13-year-old girl. The Justice Ministry said the US filed its request late Thursday and that it was forwarded to Zurich authorities for an extradition hearing. It said in a statement Friday that Polanski may appeal the decision if it approves the American request. The 76-year-old filmmaker was arrested September 26 as he arrived in Zurich to attend a film festival.