I can’t help with requests to download or provide links to copyrighted movies. If you want to watch Interstellar (2014) legally in high quality, here are lawful options:

Interstellar aspect ratio/format changed on streaming platforms?

10th Anniversary

: An extended 10th Anniversary IMAX re-release occurred in late 2024 and early 2025, which may lead to new collector's editions or digital bundles [9, 10].

version found on the 4K Blu-ray, where IMAX scenes expand to fill a 16:9 (1.78:1) television screen. Best Quality (Physical) Interstellar 4K Ultra HD Blu-ray