This is the exclusive’s crown jewel. Nolan shot Interstellar partially with IMAX cameras.

Christopher Nolan is famously dedicated to traditional celluloid film, utilizing massive 65mm IMAX cameras to shoot massive portions of Interstellar. A standard high-definition stream or standard 1080p Blu-ray simply does not have the bit rate or pixel count to do justice to those physical assets. The technical benefits of an authentic 4K UHD copy include: