I knew a guy who was working on rides in the late 70s that had enclosed seats and movie screens and he said what he did to make people think the movie was describing their motion was to match accelerations with gravity. So if he wanted you to feel you were in a plane taking off and the acceleration was pushing you back into your seat, he would just slowly tip you and the screen (and the whole pod) onto your back and let gravity provide the extended feeling of acceleration while the movie showed a forward cockpit view.
Nowadays they shake the scene and shake you but I never see this “match accelerations” approach. I guess it’s too expensive to give everyone private ride pods, or something.
