Deliberate mistake: Throughout the entire movie, every time Charlie Sheen is not wearing his helmet, especially when he's out in the field in this tropical climate, his hair is always meticulously combed back, blow-dried and puffy. As a veteran, I know from personal experience that when you take your helmet off, especially in a climate like that, the reality is your hair will be messy, sweaty, pressed flat and most unattractive.
Continuity mistake: In the scene where Tom Berenger is near death and dares Charlie Sheen to shoot him, the first time Sgt. Barnes turns over on his back to face Sheen, his T-shirt is in pretty presentable shape. A few frames later when we see the good Sergeant his T-shirt is ripped and shredded. (01:49:05)
Continuity mistake: After the final battle at the end of the film, there is a scene where Francis who was in the hole with Taylor during the final battle, stabs himself in his right thigh so that he will be injured for the second time and sent out. In a scene shortly there after we see Francis loaded onto a helicopter and the bandage is on his left thigh and not the right one where he stabbed himself.
Continuity mistake: Bunny carries a shotgun throughout the entire film. In the final big battle scene, Bunny is seen firing his shotgun at the enemy while Junior cowers in the fox hole. When Junior runs out of the hole and Bunny turns around to yell at him, Bunny is suddenly holding an M-16 rifle. The scene cuts to Junior smacking into a tree and then quickly cuts back to Bunny, who is now holding his shotgun. As Bunny begins to turn toward the enemy, he still has shotgun in hand. When Bunny completes the turn and is shot by the NVA soldier, he is again holding the M-16. (01:42:05)
Continuity mistake: In one scene as they are walking towards a village a shot shows them walking next to a river. Whilst it is meant to be raining and the troops are wearing raincoats have a look at the river. There is no splashing as droplets land, indicating that it wasn't raining at that particular moment. The rain was merely water sprayed in front of the camera.
Continuity mistake: When Barnes overhears the squad talking about fragging him, he stands up, walks toward the post and his scar disappears for a moment. When he asks if anyone knows what death is, the scar returns.
Continuity mistake: Just prior to the last battle "King" is informed that he is going home. He places two bandoliers of M-60 machine gun ammo over his right shoulder as he is saying goodbye to Sheen.In the next shot (as he continues to say good bye)the bandoliers have been changed; they are now cris-crossed to the left and right of his neck.
Revealing mistake: During the fight scene in the village between Elias and Barnes, as they roll around on the ground, Barnes "hits" Elias with a right hook and Elias's head is thrown to the side as if he just caught a serious blow. The problem is Barnes's fist quite obviously clears the front of Elias's face by at least 5-6 inches.
Revealing mistake: At the end of the movie when the camp is being overrun, a U.S. soldier is standing to the left of a bunker, with his back to the camera, when he is shot. As he falls backwards he can be seen reaching up with both hands to throw his helmet up and out to simulate the effect of him being thrown backward by the force of the shot.Mobrien316
Other mistake: After the brief fight between Barnes & Chris, when Barnes has Chris pinned, he cuts him below the left eye with a knife. It is a quick cut with a sharp knife, but instead of a thin bright red line we see instantly a blob of dark blood. This is plain sloppy.
Continuity mistake: When Tubby Gardner is killed, they try to bandage him up, but he dies before anything can really be done. The bandage on his chest isn't fixed properly when he dies, when the shot goes and comes back to him lying dead, the bandage is fixed properly around his chest.