But, I'm also aware of those that aren't/weren't. Small World. Motorboat Cruise. Skyway.
In addition, being a former Tomorrowland Attractions guy, as well (at the onset of my ten year career at Disney), I also knew that there were experiences in that land that did not rely on a movie either. Flight to the Moon/Mission to Mars, Carousel of Progress, PeopleMover, Space Mountain (which Walt had on the drawing board), and ATIS (which, I believe, had early renderings considered by Walt as well).
So, yes. There were movie tie-ins. But Walt didn't stop there. He had plenty of attractions that weren't movie-based. And he also had those that had a didactic quality, as well.