Hùng's Oscar-nominated debut (for Best foreign film) was The Scent of Green Papaya (1993), which also won two top prizes at the Cannes Film Festival. His follow-up Cyclo (1995, which featured Hong Kong movie star Tony Leung Chiu-Wai), won the Golden Lion at the Venice International Film Festival. The Vertical Ray of the Sun, released in 2000, was the third film in his "Vietnam trilogy."