In the home version, those transitions are gone. It’s locked at 2.39:1 (widescreen) for the whole runtime.
If you search for "Interstellar 4K" on a retail platform, you will find the official disc release. It is excellent. But the term "IMAX 4K" implies a specific technical specification that most consumers overlook: Interstellar Imax 4k Download
/* Controls Overlay */ .view-mode-toggle position: absolute; top: 20px; right: 20px; background: rgba(0, 0, 0, 0.7); border: 1px solid #444; color: white; padding: 8px 16px; cursor: pointer; font-size: 14px; z-index: 10; border-radius: 2px; transition: background 0.3s; In the home version, those transitions are gone