OK...I actually enjoyed the ride of the film...but no reviewer I have read has even mentioned the impossibility of the time frame to produce the gigantic "arks" by 2012. After all, the world leaders only found out about the impending disaster in 2010. All those ships with their advanced computer graphics (showing the collision with Mt. Everest in real time!!!) etc. etc. doing all the logistics for finding the richest patrons to sponsor the undertaking....all the international cooperation required to finalize the details...not to mention how do you do any quality control/final testing of an ark that will rely on a rising tidal wave to launch it?
You've accepted every other impossibility but the ARKS are the things that make this movie go from realistic to fantasy for you? How about that they continually rendezvous with the russians? The dog returns? They're able to gain access to what one would assume is the most secure craft in the world? Planes can outrun fire? Cars that outrun earthquakes? Basically something every 5 seconds?
This immediately reminded me of this Cracked article on the subject: http://www.cracked.com/article/18345_5-gaping-plot-holes-hollywood-knows-you-wont-notice/
Thanks for the article ref, but I never said I accepted all the other gaping logic/plot holes, I just said I enjoyed the ride. The reason I brought up the issue of the arks, is that to my knowledge, no one else has! The things you mention have been. And by the way, isn't it funny how the cracks in the earth are always opening up ONLY BEHIND our hero as he is driving forward...what are the odds of THAT? <smile>