Next month will be the 35th anniversary of the release of The Adventures of Buckaroo Banzai Across the 8th Dimension, one of the most inventive movies I've ever seen. But it's weird. To fully appreciate it you need esoteric knowledge--Do you know the significance of Grovers Park, NJ?--or you need some explication. Here's a start.
The complete movie is available free, but with ads, on YouTube.