Something else that was vital in that scenario, which brownie mentioned, was Cruise's character moving off line.
One of the key things in the Filipino martial arts as we teach them is removing the target via some type of body motion, whether it's footwork or a seemingly simple shifting of the body. This brings redundancy to your defensive motion.
I see so many "blocks" and "parries" taught that don't utilize this concept, so if the attacker is faster or significantly stronger than the defender, the block fails because the target is still in line. As counter-intuitive as it may seem to the uninitiated, this is vitally important with melee weapon work, including close quarters blade work.
This concept can apply to defensive shooting, at ranges greater than what was shown in the movie clip, in that when you have to draw your weapon, you don't just stand there as an immobile target as you acquire your weapon and present it. If at all possible, move to cover as you draw, but even if cover isn't readily available, move.
This is true if you have to clear a malfunction. Practicing "tap-rack-bang" (or whatever term you use) is well and good, but performing those motions while you just stand there is a front row ticket to a Bad Day.
Hurm. May have went off on a tangent there for a bit.