Revealing mistake: When the police snipers are loading their rifles in preparation to attack the terrorists when they board the bus, you can see they are crimped blank cartridges. (01:25:36)
Revealing mistake: All of the bullet holes in the target Da Silva fires at are wrong. When a bullet hits something, the explosive force exits in the same direction as the bullet, yet when you look at the target, you can see that the ruptured paper of the target has blown toward Da Silva, obviously a side result of having explosive charges on the back of the target to simulate bullets going through.
Revealing mistake: When Da Silva has finished shooting on the police firing range, the camera does one last shot of the target and you can see the squib detonator wire hanging from the hole that's just been created in the head area of the target.
