rtcvb32: I don't... the ending to the movie sorta felt stupid, the whole faking an explosion to prevent nuclear war felt incomplete or something to me. But, my exposure to Watchmen is minimal...
Not just any explosion, an explosion supposedly caused (the reader and a select few in the story know better, the rest of the world doesn't) by a non-human threat (Dr Manhattan in the movie & a bona fide 100% extra-terrestrial alien attack in the comics).
It's painfully realistic. Nothing makes us reconcile our differences faster than a threat that is even more different.
Believe me, if an alien specie attacked earth, a lot of our inter-national rivalries would suddenly become petty in comparison. After all, the difference between countries pales in comparison to the difference between species!