This year, the Best Picture list was expanded, partly to make sure that at least a couple of blockbusters would be on it. (The biggest grosser of 2008, The Dark Knight, was one of the better Batman adventures, but it didn't make the cut.) To forestall a victory for some cinematic George Wallace or Ross Perot, the Academy switched to a different system. Members -- there are around 5,800 of them -- are being asked to rank their choices from one to ten. In the unlikely event that a picture gets an outright majority of first-choice votes, the counting's over. If not, the last-place finisher is dropped and its voters' second choices are distributed among the movies still in the running. If there's still no majority, the second-to-last-place finisher gets eliminated, and its voters' second (or third) choices are counted. And so on, until one of the nominees goes over 50 per cent.