Continuité: The earring in Art's left ear at Thomas' house.
Considéré à tort comme goofs: In the ambulance, they skip the green card in Simon's collection, which is why they appear to be in a different order on the train.
Révélant des erreurs: In the subway tunnel, part of the supposedly stone wall moves when Jeffries brushes up against it.
Continuité: When Art and Simon are caught between the trains, Art's hand moves from Simon's ear in different angles.
Divers: When Art breaks the door to Simon's house, he closes it and the door clicks even though Art broke it.
Continuité: Waste bin in Leo's flat is under the desk when Leo throws the carbon paper away. Yet when Emily finds bin, it is part way out from underneath desk.
Audio/Video non synchronisé: When Emily walks into her boyfriend's apartment, her lips stop moving for a brief moment but she doesn't stop talking.
Erreurs factuelles: When Simon is completing the Jigsaw puzzle picture side down, the map of the US is still seen the correct way around, when in fact it would be reversed (mirror image)
Erreurs factuelles: When Art Jeffries (Bruce Willis) is driving the stolen ambulance on the freeway, the assassin takes two shots at Bruce and Simon using a silenced pistol. The second shot shatters the ambulance windshield; this is not possible since all windshields are laminated glass. in reality, there would only be a small hole in the windshield, maybe the windshield would be cracked, but definitely not shattered.
Révélant des erreurs: When Art is driving the ambulance, we see it from the front, with the word "Ambulance" clearly readable. However, the word is always printed in reverse on the front of an ambulance, so that it can be read by drivers looking in their rear-view mirror. The film has not been flipped, because it's clear that Art is sitting in the ordinary driver's seat.