Chewtobacca said:

Films this length can certainly fit on a BD-50. Studios can't win really. If they put the films on one disc, some people complain about the bitrate, and if they split them onto separate discs, some people complain about having to change the discs.

Hmmm. I'll be keeping my fingers crossed that the bastards are planning on yet ANOTHER double dip of these one day...on a single disc each...before they progress onto the eventual 'converted' 3D Blu-rays eventually. Which will probably be split in two too... ;)