Revealing mistake: In the shot of the assassins fleeing the scene of the bullet-ridden Range Rover in Shanghai, China, people are casually crossing the busy street in front of and behind the car. Nobody is looking at what just happened. Computer generated graphics were used to place the car and assassins motorcycles in the shot.
Revealing mistake: When turning the guy with C4 around his neck, the 4 person safe box window shakes briefly. If this was a bomb proof safe box, the glass would be at least 1.5"+ in thickness and would not shake simply from some walking. That box would be shrapnel to a C4 bomb inside.