In some scenes, the upper part of the hull is painted white. In others, it is black.
Although the movie is set in 1990, most cars in the background are newer.
When Binh arrives in Ho Chi Minh City the movie incorrectly identifies it as "Saigon 1990," but the name was changed in 1976.
When Binh gets to Texas, the family giving him a ride drops him off outside a city and refers to it as Houston. The skyline of the city is very clearly that of Dallas, not Houston.