Sahil Kumar

The culmination of 10 years and more than twice as many movies in the Marvel Cinematic Universe, “Avengers: Endgame” promises closure where its predecessor, “Avengers: Infinity War,” sowed chaos. That film — which revealed that the cookie-cutter uniformity of all those MCU movies had been part of an unprecedented master plan — infamously wrapped with a snap: a gesture that, when performed by a supervillain armed with the six Infinity Stones, was capable of wiping out half of all life in the universe.