Why The MCU Changed Thanos’ Origin So Much

Thanos is the most popular villain to come out of the MCU, but the version of the character on shown on screen is drastically different than the one in the comics. Ever since the first Avengers movie, when Thanos sent his army to aid Loki in his attempt to conquer Earth, the MCU set up that there was a much more powerful threat somewhere in the universe that was imminently approaching the heroes. Over several movies, as the Mad Titan sought out the Infinity Stones, the MCU masterfully wove a web of plot threads that culminated in the arrival of a frightening, mighty adversary.