Blooper

The left side face scar that Rambo received on the second film while being tortured on Vietnam and that was visible in the sequels is missing on this one.

When Rodriguez and his men follow Rambo into the tunnels, only about 8 to 10 are with Rodriguez, however, the number of men killed by Rambo in the tunnels is 27.

In First Blood Part II it was stated that Rambo was born in 1947, and in this one on his ID, it says he was born in 1950.

At the end of the film "Rambo" during the closing credits, Rambo is walking down a road towards a farm that's supposedly the same farm in this film, however, the farm he is walking to has more buildings and is totally different than the one in this film.

The ranch house is surrounded by dry grass and hay bales. When the final confrontation begins, Rambo triggers explosives and there are huge walls of flames shown. When all is done and Rambo emerges from the barn, the massive fire has been magically extinguished.

Rambo's service photo with the MOH shows him wearing what appears to be a U.S. Army Air Forces Pilot wings, which was changed by the Army in 1950. He didn't join the Army until 1966. He should be wearing the Army Aviator Badge since he flew gunships in Vietnam.

Many of the driving shots are obviously filmed against the green screen as the dirt on the windshield and edges of people's hair has an unnatural blue-gray tint.

At The End Of The Movie As John Is Walking Up Onto The Porch Of The House The Door Is Seen Closed, But As The Camera Is Panning Out The Door Is Now Open.

When Rambo is confronting the cartel leader he is then attacked viciously by almost 30 men with kicks punches etc at his age and that many attackers at once i seriously doubt he would have survived the beating severe head trauma would have been the likely cause of death if that had been real..

Carmen drives a Chrysler Vision in Mexico; that car was sold under that name in Europe.

John goes back to Carmen to convince her that he needs her help for their revenge. She nods in agreement, but he does his thing without her in sight, or in any way involved the rest of the way.

After Rambo's massive beating by the Cartel, with both eyes shut, bloodied and bruised, he miraculously recovers in 3 days.

Gabrielle uses her phone while being underground in the tunnels constructed by Rambo. It is highly unlikely that she would get a signal down there.

During the opening credits, Rambo (Sylvester Stallone) is shown in a photo as a young serviceman wearing the Medal of Honor, but he is wearing the uniform of a U.S. Air Force officer with the U.S. Air Force variety Medal of Honor.

As a member of a Special Forces A Team, Rambo was a Sergeant in the U.S. Army, so the production staff used the wrong photo to composite Stallone's face onto. It is a drastic mistake given the volume of canonical material available.