President Thomas Wilson: Six months ago, I was made aware of a situation so devastating that, at first, I refused to believe it. However, through the concerted efforts of our brightest scientist, we have confirmed its validity. The world, as we know it, will soon come to an end.
About an hour into the movie the plane with our heroes in it is being chased by a pyroclastic flow from the Yellowstone eruption. The flow at one point fully overtakes the plane. A pyroclastic flow is comprised of hot gas and rock sometimes over 1000° Celsius. It not just dust and smoke. The plane would have been ripped apart by both the temperature and the fast flying rocks. Instead it came out of the flow without a scratch.
Though named differently, all the state leaders (plus the governor of California) shown in the movie are of the same gender, ethnicity and general appearance as their real-world counterparts who ruled in 2009.