Deliberate mistake: The Glock pistol the dying Russian assassin attempts to fire clicks, symbolizing it's out of ammo, or had a malfunction such as failure to ignite primer which is extraordinarily unlikely. His action symbolized a dry weapon. When a modern handgun in particular a Glock runs dry, the slide stop lever engages the slide and leaves the slide open until a new magazine is inserted and the slide is racked or the slide stop is pushed down. On a dry Glock the trigger can't be pressed until the slide is cocked. (00:16:45 - 00:17:30)
Deliberate mistake: After John poured gasoline on/around the Mercedes, set it on fire, and it was surrounded by flames, he was able to put his hand through the flames to open the rear passenger door and get inside. He did not burn his hand on the hot metal door handle and did not catch any of his clothes on fire or even singe his hair. His hand was not injured because he was able to hold and aim his pistol with it. (00:35:04)
