Elegant Tobacco said:
You could probably piece together a good portion of the IMAX scenes in 1.78 from the clips that are shown in the special features(which are surprisingly long). They have a nice bitrate, too. It would require some editing though, since the center of the frame is sometimes obscured by text. Overlaying the 2.35 Blu-ray image over it should be enough to cover it up. Anything not shown in there could be patched up with the iTunes and HDTV sources. Just an idea.
I've already done that. I've pilfered through all the special features to get everything I can. We just need a good capture of the EPIX broadcast and we'll have a quality version.