Continuity mistake: Connor decapitates Fasil holding his sword with one hand, but the close-up shows that he's using both hands. (00:09:25)
Factual error: The marine unloads his Uzi at Kurgen, about 10 seconds of full-auto fire. The Uzi fires at 600 rounds a minute, so can only fire for about 3 seconds (with a magazine the size he's using) before running out of ammo.
Character mistake: When Brenda first witnesses Connor and the Kurgan fight, Kurgan says "I am the only one." Afterwards, Brenda asks "What does he mean by there can be only one?" She somehow misheard Kurgan and thought he said the movie's iconic catch phrase.
Suggested correction: This is incorrect. He does say "There can be only one." He's saying it while beating Conner, so the first part is a little muddled and he emphasizes "one", but he does say the line.
Visible crew/equipment: When Connor and Heather are making love on the knitted blanket, the shot from above them shows the edge of a white and blue blow up bed just below the blanket. (00:38:18)
Audio problem: After Connor and Brenda's sex scene, we see them in a zoo in front of a lion cage. After his line : "I can't get involved, not again", we see Brenda talking back to him but nothing is heard. (01:36:33)
Continuity mistake: When the marine starts shooting about 5 shots rip through the Kurgen's stomach, but in the long shot when his arms are outstretched there are no holes or blood, then they reappear for the following shots.
Revealing mistake: When McLeod has his sword kicked away in the carpark, he grabs a metal pole from the fire point, only it bends when he grabs it and bends several times when he uses it, showing that it's made from foam rubber.
Continuity mistake: When the marine gets out of his trans am he leaves the car lights on, but when he gets picked up by the sword the crowd moves closer and the car lights are off.
Visible crew/equipment: When the drain lids explode in the alleyway, there's a close up of one of them landing and you can see the air ram in the drain next to it.
Audio problem: On the roof of Silvercup Studios at the end, Brenda is screaming, but her lips don't match the screams.
Revealing mistake: At the end during the sword fight, sparks fly off whenever the Kurgan hits something metal. However, at one point, the sparks fly out a full second after the Kurgan strikes it. You don't even need slo-mo.
Continuity mistake: At the end, the Kurgan knocks down Connor's sword, and we can see it about a metre behind Connor. In the next shot, the sword is gone. He did not pick it up, and had no time to get away from where he dropped it.
Visible crew/equipment: As the Marine gets out of his car to break up the sword fight, a boom mic is visible as he stands up.
Character mistake: In almost all the swordplay, most of the parries are shown as edge-on-edge. This simply was not the norm. Edge-on-edge destroys swords. It ruins the edge and will cause them to break. Parries were done with the flats and deflection.
Factual error: When Connor and Kurgan fall through the roof at the end, they fall way too slowly than they would in real life. It takes them about 10 seconds to hit the floor in a building that looks about 30 metres tall.
Revealing mistake: This is just after the Kurgan kills the black Immortal. The Marines sees him in the alleyway after the Kurgan kills the Immortal, then it cuts to a shot of the marine. Look at the Kurgan's shadow-it just jumps randomly around the place thanks to dodgy editing.
Revealing mistake: When the Kurgen and Ramirez are fighting in Connor's home, watch the large pieces of stone that break away from the wall. They are obviously lightweight foam replicas of stone, evidenced by one or two shots where the Kurgen lightly pushes one slightly out of his way.
Audio problem: The bad guy (Kurgan) stabs a thug and raises him in the air. During this scene the guy stabbed is making noises, including the word "what", however his mouth doesn't match up with what he is mumbling.