Continuity: When Wesley is in his father's apartment talking to the guy that brought him there, his hair goes from wild to laid down back to wild, throughout the conversation.

Continuity: When the red car lands after flipping over the limo, the front driver's side suspension and chassis collapse from the impact, but in the next shot, the car is intact again.

Continuity: When Fox is shown walking outside of the textile mill, her hair is down and flowy. Then in the next shot, her hair is in a ponytail.

Continuity: Fox tells the story about herself as a girl and she shows him the scar on her neck. Throughout the rest of the movie the scar doesn't appear anymore.

Other: When Wesley receives the piece of cloth with Sloan's name on it, before he actually writes down the binary code on the glass table with the marker, you can see that its already written. But when he starts to write down the code, the table is clear again.

Continuity: In the last scene, Sloan is standing on the cross note (a trash can is right next to it), but there was no cross note and trash can before this scene.

Audio problem: In the scene where Wesley first walks into the textile factory and sees Sloane talking to a worker, the first shot of Sloane shows his mouth moving and you hear him talking. In the very next close up shot of Sloane, you still hear his voice but his lips aren't moving. He just turns his head towards the worker, then away.

Continuity: In the scene where the Corvette goes head to head with Wesley's Mustang to flip over the limo and kill the target, while the Mustang flips in the middle of the air, it's going clockwise. But in the landing scene right after, it lands in a counter-clockwise movement.

Continuity: When Wesley slices the Butcher's neck, the far angle shows that he cuts him on the left. But when the close-up comes, it's on the right side of the neck. And when Fox is beating Wesley up, as she punches him, the close-up of the brass knuckles shows them on her left hand when the wide scene showed the brass knuckles on her right hand.

Continuity: When Fox is giving CPR to the Russian, the amount of blood on her face keeps changing in different shots, we go from lots of blood on her face, to only around her mouth, and she didn't have time to wipe it off.

Continuity: Just prior to Fox taking Wesley train-surfing for the first time, she sits on the castellated wall of the textile mill, with her high-heeled boot visible; but then, jumping onto the train, her boot changes to a flat, block-heeled type.