The Super Mario Bros. Movie 2 has the potential to take place in a completely different kingdom, finally moving Mario and the gang outside of the Mushroom Kingdom. The Mushroom Kingdom is the main setting of The Super Mario Bros. Movie and the franchise as a whole, but the video game series has also featured all kinds of other locales that would make great backdrops for future Mario movie stories. Thus, The Super Mario Bros. Movie 2 should pull from one of these settings, using it to replace the Mushroom Kingdom in the upcoming sequel.