If you are looking for the best possible physical or digital copy, several official versions exist:
Interstellar: 10th Anniversary Limited Edition (4K UHD Review) Interstellar Imax Bluray Download
: During key sequences—like the launch from Earth, the docking maneuver, or the descent into the black hole—the image expands vertically to fill your entire 16:9 television screen (technically 1.78:1 on the disc). If you are looking for the best possible