[manicdee]

Getting into a pedantic argument of the semantics of "stopped" is missing the point that Disney has a vault into which they put their movies so that they can extract more revenue from their IP by trickling it out on a seasonal basis, stopping anyone screening movies that Disney don't want on rotation.

It's especially pertinent here since the purpose of screening the movie was to commemorate the life of Chadwick Boseman, the lead actor of that movie. Disney didn't even make an exception by unvaulting a popular movie on the occasion of the lead actor's death.

But when it comes to the pedantry…

https://www.merriam-webster.com/dictionary/stop

… remember that "stop" used as a transitive verb means "to make impassable," or "to keep from carrying out a proposed action." There doesn't have to be an action in progress to stop it. The theatre proposed a course of action, Disney stopped that course of action by not giving access to the resources required to proceed.

There are eight senses of the word "stop" when used as a transitive verb, and your pedantic argument relies on choosing one sense of the word and ignoring the others.

If you are going to be pedantic, do it properly.