Continuity mistake: The plane that took off when Cameron boarded has its engine on the wings. In the external view of the same plane when Tom was fighting the bad guy, the engine is on the fuselage. (00:06:25 - 00:12:15)
Visible crew/equipment: When Fitzgerald's car pulls over a man is reflected next to the car plus a huge big box. From the opposite angle he's gone and the box is replaced with a car. Seemingly a crew member and a hidden camera or platform. (00:24:01)
Continuity mistake: When the little kid hands Roy his sunglasses, the way he holds them changes between the first and second shot. (00:26:28)
Audio problem: When Roy shoots the first two guys above them right after he stops the car you can't hear the shots when he starts shooting: there is a delay of about half a second. (00:28:15)
Continuity mistake: On the island, June's strap goes under the collar of her shirt, but a shot later it's on top of the collar. (00:52:21)
Continuity mistake: Roy has dinner with Naomi. She bends her hand backwards, then shot changes, and she caresses his face. Shot changes again and her hand is suddenly bent backwards. Like it was in the first shot. (01:07:31)
Continuity mistake: When June lies about having the Zephyr and is kidnapped to Spain, they show Fitzgerald driving to Antonio's home (establishing shot). This is before Antonio and Fitzgerald have met, but behind Fitzgerald's car, Antonio is following. Clearly a shot meant for later when Antonio starts to follow Fitzgerald to pick up the package. (01:24:00)
Visible crew/equipment: When Roy and Naomi are on the motorcycle escaping Antonio's compound and they come crashing through the wooden doors, a stunt man is visible falling from the motorcycle for a just a flash after they crash through the doors. (01:31:49)
Factual error: Outside Seville, Cruise jumps off a bridge on a stall with a sign that reads "Especial en sardines". This is senseless text. The correct spelling should be "Especialidad en sardinas".
Factual error: The running in front of the bulls tradition takes place in Pamplona, 710 km away from Seville.
Continuity mistake: After June follows Roy in the middle of the night, she gets taken into the secret service. Out the back windows, it is pitch dark. Out every other window, striking daylight shines through.
Visible crew/equipment: When Roy grabs unconscious June and parachutes her off the plane, she stares at him and 3 stage lights plus a lighting screen are reflected on her goggles.
Other mistake: When June is standing on the escalator in the airport the people on the escalator with her swap from shot to shot as they change camera angles from a view looking down at her to one taken from the side. In one scene the escalator is nearly full with people, but in the next there are only two men standing behind her.
Continuity mistake: When Roy's bike falls in the river and he lands on the car's hood, from the opposite angle, a frame later, the river is gone and there's a highway with cars passing by.
Continuity mistake: When both main characters are talking in the field after the plane has crashed, Roy gives June a bottle to drink to knock her out, she drains the bottle so it's empty, but a few seconds later the bottle has some left in it for her to finish drinking.
Audio problem: During their conversation on the plane, when Cameron Diaz tells Tom Cruise about the wedding gift for her sister being a car, during shot when she says "kinda like a present from my dad too you know" you can see her mouth doesn't move. It's not because of the angle of the shot either; you can see her mouthing moving from the same angle during other parts of the conversation.
Revealing mistake: Inside the tunnel, Roy is on the car's hood, with the car swerving all the time. When the angle changes to a POV of the baddies he doesn't move, as if he was glued to the roof, revealing the security trick.
Continuity mistake: At the airport, the aircraft parked at the terminal that they are going to get on is a cargo jet. This is a 727. When they take off the scene shows a A320.
Revealing mistake: In the scene in Salzburg train station, the trains that can be seen in the background are marked RENFE, which is the Spanish state-owned train operator. Also, when Fitzgerald looks at Roy through the window of the train, the station signs are "Salzburg Bahnhof", but only a few seconds later, when they are walking on the platform, the same signs are "Sevilla Santa Justa". This scene was actually shot in Seville train station.
Continuity mistake: In the car chase scene, where Cameron Diaz is trying to steer the car and Tom Cruise is hanging off the car with the bad guys in pursuit, notice how Tom's gun changes through the scene.