Listen, this popped into my head and obviously I had no choice but to make it a reality and curse all of you with it.
image description (alt text):
Screenshot from the 1984 movie Ghostbusters, with Elon Musk's face photoshopped onto the character Dana Barrett (originally Sigourney Weaver).
It is the scene where Dana is possessed by a demon, lying in bed looking up at the character Peter Venkman (Bill Murray). Her line at this point in the movie is "There is no Dana, only Zuul."
The caption on the image, however, says "There is no [Twitter logo] there is only [X logo]"
Can't believe nobody has mentioned "Needle in a Time stack" (2021).
Oh wait. Yes I can.
But seriously though, I'll throw a real answer out there. It's not my favorite by a long stretch, but it's worth a watch IMO: Paradox (2016). The writing is bad, the acting is bad, and the special effects are literally laughable, but the story and concept are actually fairly fresh and interesting. Good if you're in the mood for a semi-thought-provoking B-movie.