X-Men: Days of Future Past laid the groundwork for the multiverse concept going mainstream, according to screenwriter Simon Kinberg.
Source:https://www.cbr.com/x-men-days-of-future-past-simon-kinberg-multiverse-movies/X-Men: Days of Future Past laid the groundwork for the multiverse concept going mainstream, according to screenwriter Simon Kinberg.
Source:https://www.cbr.com/x-men-days-of-future-past-simon-kinberg-multiverse-movies/