The version of Avengers: Infinity War (2018) is currently available to stream in 4K (2160p) on Disney+ . This version features an expanded 1.90:1 aspect ratio , providing up to 26% more picture than the standard widescreen release. Where to Find the IMAX Version
Suitable for viewing on 4K HDR-capable displays. Verification of audio track format (Atmos vs. 5.1) is recommended for users with advanced surround sound systems.
: This means the file was losslessly "downloaded" from a streaming service (like Disney+) rather than being "ripped" and re-encoded from a disc. UPD (Updated)
For years, the IMAX version was a "theatrical exclusive." Fans even launched petitions to have Disney release the full-frame version on disc, but initial home releases stuck to the cropped widescreen format. The arrival of high-quality —digital files captured from streaming services—marked the first time home viewers could experience the film without the restrictive black bars of the Blu-ray.
The avengers.infinity.war.2018.imax.2160p.webdl release represents a high-quality acquisition for digital archivists. It combines the superior resolution of 4K with the immersive IMAX variable aspect ratio, offering the most complete visual experience available digitally. While it lacks the pure audio fidelity and video bitrate ceiling of a physical UHD Blu-ray remux, it serves as the definitive "space-saving" version for high-fidelity viewing.
Because the movie was shot entirely with IMAX-certified cameras, the expanded ratio reveals vertical details previously cropped for standard theaters. 2160p (4K):