Other mistake: When Sarah and Casey learn they're only getting a small portion of the money, Kenny says "Wait, you guys are getting paid?" However, he was there when David agreed to pay Casey $1000. He knew she was getting paid.
Other mistake: The last half of the movie is based in France. Mr. and Mrs. Jones are being rescued by a French man that she has been texting. He comes to them on the cliffs in his boat. The flag waving behind them is the flag from the Netherlands not the French flag. They have the same colors but the stripes on the French flag are vertical while the ones on the Dutch flag are horizontal.
Other mistake: Keira Knightley looks down at her phone, there is a beautiful female hand holding the phone with long slightly curved nail beds. This is not Keira's hand which is seen many other times times throughout the film. She has shorter nailbed and flat nails. (00:22:37 - 01:13:56)
Other mistake: When Stig shoots the helo and kills the co-pilot it still crashes. He killed the co-pilot, the pilot sits on the right side. (01:36:30)
Other mistake: Throughout the film, you can frequently see many people's faces blurred, phone numbers blurred, store-fronts blurred, etc. This is because the production could not afford the rights to show these people, places and things, and simply blurred them out.
Other mistake: The head of the animal that Guy is wearing when he first meets Eep is not positioned in a way that he would be able to see out of it when he holds his hands up to defend himself.