This is Nolan's most confusing movie to date. I love having to think deeply but this movie did a poor job explaining the necessary details for the audience to completely understand the plot and its many moving parts. Show the turnstile changes, all of them, explain them and how they work. Talk slower, pronunciate better, explain the Tenet idea on a piece of paper (like in Interstellar with black holes). Reveal all of the necessary details in the beginning of the movie as well like where the characters are going and why? Lack of explanations combined with fast talking, thick accents, and mumbling left the audience lost. Could have been one of the greatest movies ever if these things were changed
Edit August 28, 2023: A movie to be watched with headphones and by yourself. It is the only way to truly understand. Time to keep my inversion going. On the way to tell my 2020 self this same information.