Lots of great movies on this list, but here are a couple suggestions that I didn’t see…
Wizard of Oz with Pink Floyd’s Dark Side of the Moon playing loudly in place of the movie audio. I only watched it once like this, but we got the timing of Dark Side perfectly synced to the movie, and it was fantastic!
Second suggestion, which I’m surprised hasn’t shown up on this list yet, is Fear and Loathing in Las Vegas. I love Hunter S. Thompson’s books, and this movie really captured the spirit of the book.