"You have one goal: to connect with your audience. Therefore, you must track what your audience is feeling at all times. One of the biggest problems I face when watching other people’s movies is I’ll say, ‘This part confuses me’, or whatever, and they’ll say, ‘What I’m intending to say is this’, and they’ll go on about their intentions. None of this has anything to do with my experience as an audience member. "

I opine on this in poetry a lot. People have a tendency to write some super vague poem that completely washes over the audience, and so rather than fix it, they include a preamble that makes the subsequent poem pointless. Then you call them on that and they say "Well, I just write for myself."

If that's so, why are you reading it to a live audience and asking for feedback? If you're not writing it for the audience, save the audience the trouble. I'm sure it's the same way for movies, presentations and pretty much any performance.

In fact, I wrote a poem bashing this very practice recently. Allow me to explain all the clever allusions up front in case they are too obtuse.