gomez

Revealing mistake: At the end of the film when the two Detectives are checking the sewer for the missing button. As the male Detective is lifting the sewer, the inner sewer lid paint peels back, exposing a white color of the sewer lid. Which makes you realize the sewer is likely made of a light wood or plastic (making it easier for actors to lift lid). It is obvious the "Props Crew" didn't do a good job in painting the sewer. It is made more obvious when the female Detective tries to hide the peeling paint by very quickly sliding her hand over the exact spot its peeling. Then in the next shot the male Detective does the same, but in the corner.

gomez

Continuity mistake: When Rambo is hanging from the cliff, and the officer is shooting at him from the helicopter, the cliff he is hanging from with his two arms change just prior to his jump. You see two different ledges he's hanging from, one is a totally even horizontal cliff, the 2nd is a V-shaped ledge.

gomez

Visible crew/equipment: When Rambo is jumping down to kill the boar, the camera angle is from ground up, you can see Rambo is wearing some type of white underwear over his jeans, most likely a Jock support underwear. During other scenes the brown tarp he is wearing hangs low so you can't see the white underwear.

gomez