Presented in 1.78:1 , which fills the entire screen on standard 16:9 widescreen televisions, similar to the IMAX presentation. Audio:
Native 3840 x 2160p (upscaled from a new 4K master).
A: No. It is a 2K digital intermediate upscaled to 4K with HDR. However, the upscale is supervised by James Cameron and is widely considered reference quality.