Maybe all you nerds already knew this, but I only recently discovered that the main music in Inception is a song about not having any regrets. When I learned this, I was thinking, damn Nolan. Well done. Use a foreign song about no regrets as the main theme for a movie focused on the protaganists greatest regret.
Its stuff like this I dont even normally think to look for and I only found this out by accident. I will admit, I dont usually dig much into the musical scores of movies.
Just thought it was interesting and an added fact I didnt even know when I saw the movie.