I don’t know what’s going on in Tomorrowland as of this trailer but I’m certainly intrigued. Visitable parallel world? I presume it’s a “real” place (maybe the pin shows a holographic image of it) so the jeopardy can be real.
Quite a few games have multiple interconnected settings, going right back to the planes in D&D. A few, mostly urban or portal fantasy, have the “real world” Earth and elsewhere as the only or a major fantasy element. An SF version is unusual.
The ease of moving from one setting to another, and what effect they have on each other, will also change how such a setting works. When you go to Narnia you’re in for an adventure, while stepping sideways in Werewolf: The Apocalypse is just as likely to be used as a bonus to sneaking in somewhere.