When Ace is hit by the arrows in the woods, four are shown sticking into his back. After Ace hits the ground, five are sticking out of his back.
The chess pieces on the chess board that Vincent is playing on disappear 1/2 way through Ace's rant in his trophy room.
The jeep that Ace drives into the jungle loses many body parts, but they are soon back on the car.
When Ace is trying to escape from the robotic rhinocerous, his hair is visible outside the opening in the long shots when it hasn't burst free yet in the close-ups.
When Ace knocks out the "Monopoly Guy," and struts around with him on his shoulder, the rich woman he was with disappears from the stairway and reappears between shots.
In the Chief's Hut, prior to Ace being spit on by the chief and his son, A Scarlet Macaw is clearly visible next to the chief. Scarlet Macaws are native to South America, not Africa
When Spike tasers Quinn, the electricity appears to "jump" from the taser to Quinn. The type of taser Spike was holding must come in contact with a person to have any effect on them.
Ace mentions that ravens are rare in Africa. In fact, they are not found at all south of the Sahara.
When Ace lets the slinky go down the steps there is no way it could make it all the way as there are several widely spaced landings every so many steps that the slinky could not overcome.
When Ace is drumming on the tree fungi one is knocked off and the metal rod that was used to attach it to the tree is visible.
After Ace removes the apple from the victim's mouth, there is a shot where the victim and the medicine doctor are in the background. In the previous scene, the medicine doctor took out the victim's heart, creating a hole. However, in the shot with the victim and medicine doctor in the background, there is no hole in the victim's abdomen.
While Ace inspects the poacher's hut, he is sedated by a dart. In the following scene when he's tied to the raft, his shirt has clearly changed.
When Ace flips the Jeep, the flash of the pyro charge used to flip the vehicle is clearly visible.
The Wachootoo witch doctor has obvious false teeth covering his real teeth throughout the movie.
Editing mistake. There are two times in the movie where Ace is knocked out by poison darts. After the first time (0:48:25), Ace says he saw the shooter's feet, "not enough for a positive ID." However, the brief shot of him seeing the shooter's feet actually comes the second time he is knocked out, after seeing who the shooter was (1:02:38). This two-second shot of feet was edited into the film in the wrong place.
Just after the Tiny Warrior is released, Ace laughs. During the shot of Ace laughing, Ouda and the Wachootoo Chief can be seen in the background; they appear to be having a discussion among themselves, and are thus not in character for this shot.
When Ace is being buried in sand by a tribe member during their fight, his watch disappears when he shakes off the sand but is back on his wrist in the next shot.
When Ace is walking through a forest, there is a closeup shot of him saying "I can feel it like it's right...In my neck!" during that shot, you can see that the back round has clearly changed. (This is more noticeable on the 4:3 open matte version)
After Ace is bitten in the hand by the Tommy Davidson character in the death ring, he spins around and his watch flies off. He quickly reaches out for it but it is too far gone. He then tries to hide the fact by keeping his left hand behind his back for the remainder of the scene.
When Ouda attempts to translate what Ace says to the barbaric tribe, he translates three different lines in the tribe's language, but he says the same line twice for the first two sentences.
The two-piece band is out of synch with the soundtrack.
During the scenes where Ace is under attack by the poachers in the woods, part of his shirt falls off of his shoulder. In the next couple of shots, the side of his shirt that is off is back on his shoulder.
The number of times the rope is wrapped around Quinn in the behind shot (When Ace is interrogating) him doesn't correspond with the number of times it is wrapped around him in the front.
When Ace is in the Production Room and makes that super hero mask on the general's head, you can clearly see in the shot the shadow of Aces fingers on the wall behind the general but not on the general's head.
When Ace is in the bat cave, the shadow of the camera is visible.
When Ace plays the drums on the fungus growing on the tree he knocks one piece off and you can clearly see the nail the prop was a fixed to the tree with.
The Elephant featured is this film is an Indian when the film is supposed to take place in Africa.
When Ace and Greenwald are first walking through the jungle a large snake can be seen. The snake is a Burmese Python and is native to Asia, not Africa.
In their first trip in the jungle a peacock can be heard. Peacocks are native to India and Sri Lanka, not Africa.
The Elephant at the consulate is an Indian Elephant.
The cars are all depicted with a steering wheel in the left hand side. In a British African colony such as the movie's fictional country of Nibia, the steering wheels ought to be on the right hand side, as they are in the UK.
One of the poachers claims to hear the cry of a female silverback gorilla. Only male gorillas can be silverbacks.
The head monk tells Greenwall that they do not use names at the monastery. But when Ace appears as a vision to the monk, he addresses him as "Ace".
Greenwall is wearing his pilots wings on the wrong side, British military pilots wear their pilot's wings on the left breast.
When Greenwall (Ian McNeice) puts his fingers in his ears when Ace sings "Chitty" loudly, the actor can be seen laughing.
When Ace lures the 2 poachers guarding the bat away by making gorilla calls, one of them identifies the calls as being a female "Silverback" Gorilla. The term Silverback doesn't refer to any specific breed of Gorilla and more importantly it would never be female as the trait only appears in male gorillas once they reach breeding age.