Out of curiosity, how do your screens deal with unusual aspect ratios like 2.55, 2.76, and the like? Is it a preset-based approach, or can they accept an absolute aspect ratio?
As explained above in the thread, we do capture exact aspect ratios, which then get mapped to a fixed set of ratios with "trim" applied. Our approach if the ratio is not a perfect match to one of the ratios in the fixed set is to choose the ratio that is "more open" (on a 1.78 screen) for the preset so that content is not cut off on systems that can only accept fixed presets and are unable to apply additional trim. For this reason, I wouldn't be super surprised to see ratios that fall between 2.35 and 2.40 marked as 2.35 with some added trim. I just took a quick look at The Matrix and it's marked as 2.40 with no trim, so perhaps it was a different movie at CEDIA.
I'm not 100% sure about Sleeping Beauty. Looking at the guide database, it appears likely to be 2.55 (it's marked as 2.4 with significant trim applied), but I need to double-check with a colleague that I'm looking at the correct version. One of the things about our guide database is that it includes lots of physical media versions as well as the store versions, and I'm not personally as adept as I should be at navigating its nuances.