I have one more to add to that list: Why did the main villain find it necessary to take a swan dive with his briefcase? Couldn't he have accomplished the exact same thing by simply throwing it over the edge? Then he also would have at least been around to try and prevent Hunt from going after it. Seemed a rather silly move. I would have also added to the list why did the flare up the sleeve of the dead agent work, but they actually acknowledged that one Excellent film by the way.