[Warning: The Following Contains Spoilers From WandaVision, As Well As Rumors Regarding the Third Spider-Man Movie’s Plot.] Before and during the early days of the Marvel Cinematic Universe, other studios created their own films based on Marvel characters. Retroactively referred to as “Marvel Legacy” movies, they range from the wildly successful Spider-Man and X-Men franchises to standalone movies starring the likes of Daredevil, Hulk and the Fantastic Four. They all exist in their own continuity, which is almost unheard of in the modern age of superhero films. But now, with the MCU getting ready to explore the Multiverse, these worlds are starting to blur. Following J.K. Simmons’ reprisal of J.…