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Most official physical releases in India do not include Hindi or other local Indian language audio tracks. Official Purchase & Digital Options Interstellar Dual Audio 4k Download
If your download is SDR (Standard Dynamic Range), you are missing the point. Interstellar uses absolute blacks (space) and blinding whites (the accretion disk of Gargantua). A proper file delivers a contrast ratio that standard 1080p cannot touch. This post is for informational purposes only