I actually saw TDKR in a 'LieMAX'...and although it wasn't true IMAX...it still was one heck of a picture. It's two 2K projectors, but it is certainly a very crisp and vibrant digital projection...aside from size, it certainly looked to be at least a moderate step up from the 'regular' digital projections. But they still shouldn't be calling it IMAX or more importantly be charging IMAX prices for it. MAybe a little more as a 'deluxe' digital projection, and call is 'IMED'.
But it was considerably more impressive in terms of pure picture quality than one would be led to believe comparing it as an 'inferior' misnomer for IMAX. It should be 'Digital Plus' and only a little more per ticket.