The thumbs up/thumbs down thing will accomplish absolutely nothing because the SAME lamers that vote for zeros and fives to raise and lower stuff will do the same with the thumbs up/down. It won't make any difference, except making the middle ground movies (2.5s) get NO exposure.
How about THIS, Tom. Like I suggested before, why don't you make the voting power directly correlate to your movie average. No offense, people, but those that DON'T MAKE FLASH MOVIES SHOULDN'T HAVE AS MUCH OR MORE VOTING POWER THAN THOSE THAT DO. Likewise, people who submit movies that constantly get 1s and 0's shouldn't have as much power as those that are in the three average.
Voting power should be determined by TASTE, and not how much you click a button. There's no way that some little 8 year old searching for porn and violence's vote should be worth more than razoric's for instance.
It all matters as to what you're trying to accomplish with this site. Voting power based on average movie rating would be the best way to ensure that the best flash movies are showcased. But it's not like you're going to listen to me anyway, so whatever.