Revealing mistake: When Lucy is chained and locked up in the room by the Korean drug cartel, she is hit in the stomach by the Korean guy. Drugs start leaking into her stomach and her body, and she starts shaking and going up the wall and ceiling. When she is leaning against the wall and crawling up it, the way the gravity affects the chains and her hair shows that she is actually lying on the floor.
Other mistake: In the hospital scene wherein Lucy disarms the gunmen and retrieves the briefcase of drugs, she plunges her hands inside a fallen man's abdomen to retrieve the last bag of drugs. Her hands are thus drenched in fresh, bright red blood. Lucy immediately steps to the corridor doors, places her bloody right hand against the door (plainly touching the glass) and pushes it open. But when she pauses and turns away, there are no bloody handprints, fingerprints or blood smears anywhere on the door.
Add timeCharles Austin Miller
Continuity mistake: After her friend Richard coerces her to go into the hotel with the case to meet Mr. Jang, the man behind the counter who is talking to Mr. Jang asks her name. She says Richard is parking the car and he shows up at the window outside the hotel. Before he is shot, there is red 'blood' already on the window that was not entirely wiped off from previous takes.
Add timeDave Stanley