Revealing mistake: In the beginning, during the press conference, there's a press photographer taking pictures. He's obviously an extra with no experience in DSLR cameras at all, holding the camera around the flash and lens. He pushed buttons on the flash to "take a photo" and not one finger actually moves the real trigger on the upper right of the camera body.
Revealing mistake: When Johnson's and Jackson's characters jump off the roof of the building, on the way down Jackson's character changes to the white stunt double.
Revealing mistake: Towards the end of the movie, when the Prius spins the white van around and it crashes into a parked car, the reverse lights can be seen on the van when it is going backwards. These lights would not have come on if the van was really spinning around.
