The DI of the first two Toy Story films is 1.5K–more precisely, 1536x922. Apparently, the animators were trying for a 1.85:1 aspect ratio but made the vertical aspect ratio a tiny bit too high. Current prints are cropped to 16:9, for a 1536x864 resolution, which is the resolution at which I’m preparing the restoration before cropping it further to its theatrical 1.85:1 aspect ratio, or 1536x830. (Interesting to note, the first 2K DI from Pixar ever to be produced was for A Bug’s Life, at 2048x871, which I doubt I’ll be able to replicate effectively in Blender.)