In Green Dragon (2001), a film directed by Tony Bui's brother Timothy Linh Bui and starring Patrick Swayze and Forest Whitaker, Duong played a Vietnamese refugee who assisted Swayze's character.
[2] Upon his return to Vietnam in 2002, Duong was subjected to severe criticism by some Vietnamese citizens and government officials for his involvement in these two projects, particularly for his portrayal as Colonel An in We Were Soldiers where he orders his Viet Minh troops to kill captured and wounded French soldiers.
[3] Within a few months, the Vietnamese Actors' Association expelled him, he was banned from working in Vietnam, and his passport was confiscated.
Duong wrote a letter to his sons, reflecting upon his ordeal and stating that they "can know the truth, to affirm that I am always and forever not a traitor."
'Green Dragon' re-creates the refugee camps full of tragedy and chaos but still not lacking love and fellowship.