Instead of risking your device on shady mirrors, you can watch Interstellar in full high-definition (or 4K) through official channels:
From the towering waves of Miller’s Planet to the breathtaking depiction of the black hole, Gargantua, the film was designed for the largest screens possible.
"Cracked" streams are notorious for buffering, low-resolution (often 480p disguised as HD), and desynced audio.