You can legally acquire a 4K digital version (typically with HDR10 or Dolby Vision) through the following platforms:
This report outlines the availability and technical specifications for downloading and viewing Christopher Nolan's in 4K resolution. Availability Summary Interstellar 4k Dolby Atmos Download
: The film is available to stream in 4K on Paramount+ , though availability may vary by region and subscription tier. Audio Clarification You can legally acquire a 4K digital version
Legally, you cannot download a "streaming" file for offline use from Netflix or Amazon that retains true 4K Bitrate (usually 80-120 Mbps). Streaming caps at ~25 Mbps. Streaming caps at ~25 Mbps
It was the file that broke the internet—not in the way hyperbolic headlines claimed, but in the quiet, tectonic way a glacier calves into the sea.
Supports HDR10 (and Dolby Vision on select digital platforms like Apple TV and Vudu ), providing enhanced contrast and deeper blacks in space scenes. Audio Technicalities
Christopher Nolan is a vocal proponent of traditional film sound. He prefers a powerful over object-based formats like Dolby Atmos. On the Interstellar 4K Blu-ray , the 5.1 track is designed to be "felt" as much as heard, with extreme dynamic range that pushes home theater subwoofers to their limits.