Do their roles completely reverse? Charlton Heston as the kid in Home Alone would be hilarious.
JonThompsonsEmail
The roles and characters are the same but they are portrayed by the other actor. Obviously this will have a certain impact on the characters as well, but they films would still have the same script.
derksenmobile
Hm. Global earthquakes as the ground shifts and settles, and places with ground level near the 100m mark will probably get fissures spewing high-pressure liquefied whale from them. That's kind of nasty. But I wouldn't be surprised if most of the whale goo remains sequestered deep underground in the high-altitude regions and becomes a new sort of "fossil fuel" resource to tap into.
Ten years gives a lot of time to earthquake-proof our infrastructure, though it'll still really suck. Not as bad as most of the other world-affecting whale WYRs.