If you buy a physical copy, you can often redeem a digital code here to watch across multiple devices. Technical Specifications for the Ultimate View
When you watch Interstellar in a standard theater or on most streaming platforms, the image stays in a fixed "letterbox" widescreen format (2.39:1). However, Nolan filmed roughly one-third of the movie using massive 70mm IMAX cameras. Interstellar Imax 4k Download
A reliable source for the 4K UHD version, which often supports the IMAX aspect ratio shifts. If you buy a physical copy, you can
In a theater, these expand to a nearly square 1.43:1 ratio. If you buy a physical copy