Brad Pitt and Angelina Jolie have filed paperwork to adopt a boy from Vietnam, according to press reports in the US. The pair have three children, MADDOX, five, ZAHARA, two and SHILOH, nine months. A source in Vietnam tells American publication US Weekly the couple have filed papers with the US Citizenship and Immigration services to adopt a boy from the Tam Binh orphanage in Ho Chi Minh City, which they visited in November (06). The pair have long been vocal about their desire to raise more international children. Their son Maddox is was born in Cambodia, while daughter Zahara was born in Ethiopia. Jolie said recently, "If we're going to have ten kids, we'd like to raise them while we're young."