The entire film was shot in shades of red, white, or blue, depending on the emotional level (battle scenes are all in reddish hues, dream sequences in white, sadness in blue, etc).
Including cameos by Oliver Stone there are at least 11 other actors credited in this film that also appeared in Oliver Stone's earlier Vietnam War film "Platoon".
During the demonstration, one of the speakers says that the Bronze Star and Purple Heart honors he earned in Vietnam mean nothing. These are the same two honors that director Oliver Stone and the real Ron Kovic received after serving in Vietnam.
When Ron is sitting at a desk in Mexico, the book "All Quiet on the Western Front" is shown on the desk. It is considered one of the greatest anti-war books ever written.
A copy of "Johnny Got His Gun," a popular anti-war novel about WW1, is visible on Ron's hospital bed when he learns he will never walk again. In the novel, the main character is a soldier who is mutilated beyond recognition in a war; he has lost both of his arms and legs as well as his sight and hearing.
Oliver Stone's then wife Elizabeth is mentioned in the closing credit roll as Naijo No Ko. This Japanese term means "with the help of my wife" or, more colloquially, "I owe my success to my better half".
This film represents one of the rare instances where Oliver Stone was able to cast his very first choice for a starring role in one of his motion pictures. Tom Cruise was Stone's definite preference for the role of Ron Kovic, a casting decision that Kovic ultimately stood by.
Oliver Stone wanted to make the movie in Vietnam but relations with that country and the US were still frosty after the war so it was made in the Philippines instead.
The film's anti-war message meant that Universal were very nervous about its box office chances so they kept the budget low. To keep costs down, most of the cast didn't receive an upfront salary.
The last scene of the film to be shot - in a race against time as the sun was going down - was the wheelchair fight between Tom Cruise and Willem Dafoe.