My daughter and I just had a laughing good time watching that movie. I loved the homeless guy with his dog.
My favorite was how the "super-cooled air" would RUSH in from the troposphere all the way down to earth and freeze people in seconds. Of course, there isn't enough air up there to rush anywhere -- but worse, when it actually happened they knew it because -- the wind STOPPED. Yep, the rushing super-coold tropospheric wind was ushered in by a complete lack of movement in the heated surface air.
We also thought it was funny how the water kept rising for hours, then it froze, and then people walked out the doors of the building, and then later the frozen water was back up to the midpoint of the ship. Pretty good trick. That and the phone lines still having power when the entire electric grid was down -- those unmanned phone switches must have one heck of a power source......