In We Were Soldiers (2002), Duong played Nguyễn Hữu An, a PAVN lieutenant colonel who led Vietnamese forces against the soldiers led by Mel Gibson's character.
ɪn wiː wɜː sˈoʊldʒɚz tˈuː θˈaʊzənd tˈuː, dˈuːɑːŋ plˈeɪd ˈɛn dʒˈiː jˈuː wˈaɪ lˌɛɾɚwˈʌnˈiːsˈiːfˈaɪv ˈɛn ˈeɪtʃ lˌɛɾɚwˈʌnˈiːˈiːˈɛf jˈuː æn, ɐ pˈævən luːtˈɛnənt kˈɜːnəl hˌuː lˈɛd vˌiːɛtnəmˈiːz fˈoːɹsᵻz ɐɡˈɛnst ðə sˈoʊldʒɚz lˈɛd baɪ mˈɛl ɡˈɪbsənz kˈæɹɪktɚ.