Dave's "pick your points" option, with a max individual film and collective total (arguably one could choose to have fewer than 100 submitted films with a higher average or maybe even more than 100 with a lower average) is interesting. It would also be an administrative complication on the back end, though ultimately manageable. I reckon it is actually more of an extra time investment for creation of ballots than tabulation of ballots (unless it results in more films being on ballots, though it could very well result in fewer films being on ballots if we allow it).
BTW, based on my sample standard point distribution, we are looking at 460 total points in a 100 film ballot. So maybe a 500 point total list maximum with a single film maximum of 25? Unfortunately, it is hard to test the effects of such a system easily to know what level of individual maximum would lead to perhaps films making it on the group list based on a small number of max votes. I guess if the lists were ranked and had points, we'd have the old system as a back-up if things seemed awry, though that WOULD be a significant administrative time bump.