I have seen Avatar twice. The first time it was at a regular 3-D theatre and I think it looked like 2.35:1. Yesterday, I saw it at the Imax theatre in Providence, RI and it looked like 1.85:1 or maybe less. What was very strange and I have never seen this before at an Imax theatre, was that the image was window boxed with black bars on all four sides of the screen. I have seen black bars on the top and bottom before but never on the sides. So, will it be 1.78 on Blu-ray 3D (probably) or 2.35?