Music is the thing in films that evoke emotion. Music is what is going make you cry or laugh or get that really warm feeling when things turn out the way that you want them to. Music can really enhance the cinematic experience.
The score is what can take a film from good to iconic. There are some scores that have transcended our respect for music in films, here are some of the best film scores in my opinion.
To Kill A Mockingbird
Back to the Future