I didn’t understand Dune Part 1, and had to watch it twice and thoroughly google the backstory to fully appreciate it when it came out. The same goes for Dune Part 2.
But you really don’t need to understand everything that is going on to appreciate the characters, the action scenes, and the overall plot of the story. There are so many scenes where the emotions and the music are enough to keep you on the edge of your seat. I don’t want to give anything away, but this is easily one of the best movies I have seen in a very, very long time.
If you are hesitating to watch it, go, and thank me later!