Factual error: Helicopter rotor blades do not unfold by themselves and there is no way to unfold them from inside the helicopter. A trained mechanic with the right tools and equipment (including the proper ladder for the job) will take a minimum of twenty minutes to rig a four bladed rotor, and that's if (s)he's in a hurry. An airborne (i.e. falling) helicopter? Forget it.
Factual error: In the scene where the helicopter falls off the bridge there isn't enough time to start the helicopter, let the systems get enough pressure and get the blades rotating fast enough to provide enough lift to fly plus at the angle the helicopter was falling it couldn't even auto rotate.
Continuity mistake: When Natalie is talking to the surfer by his car, Alex and Dylan are under the car looking through his belongings. After he gets into the car to drive off, it cuts to Natalie and she says something, cuts back to the surfer pulling away in his car and then cuts to a shot of Dylan but you can see the surfer's leg/towel in the shot. Shouldn't he already be in the car?
Continuity mistake: When the Angels are at the races Natalie wiggles her head at a man and streches her arms out. Then it cuts to the man and behind him is a man on a bike jumping off a ramp and he is in mid-air. It then cuts to Natalie, then to the man again and the same man behind him jumping off the ramp, has only just began to jump.
Continuity mistake: At the end of the big motorcross scene, the Creepy Thin Man's bike hits a spar right where it connects to a leg on one of the electrical towers. The bike hits above the front tire and flips over the top of the bar, while the obvious dummy falls backward away from the bike. But when it cuts to Creepy Thin Man getting up and staggering off, the bike is back in front of the leg, right behind him. With the trajectory of both falling objects (bike and the Thin Man), he should have been thrown much farther from the metal leg and the bike should have landed yards behind it, rather than the two landing close together.
Continuity mistake: When the Angels are sitting at the desks talking to mother superior, she asks the Angels to move forward. Watch Cameron Diaz. The first time she grasps her desk to bring it forward, it's on the front bit. Then it shows a shot from behind and she is grasping it from the sides, then back to the front shot and she is grasping it from the front again.
Revealing mistake: When you see the picture of Alex and her parents in front of the Eiffel Tower, her face has obviously just been added into the photo, which is shown because the lighting is different and she is wearing the same top as she was when she was in the office with the Angels, talking to Max.
Continuity mistake: This is during the fight between the Angels and O'Grady's thugs. Seamus has Dylan against a container. He aims to punch Dylan but misses and hits the container to the right of her face instead. There's white writing on the container. Cut to the next shot and the writing is now to the left of Dylan's face.